A4SAN-E - NAS Supermicro - Free user manual and instructions
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| Product Type | NAS Motherboard (3.5" SBC) |
| Brand | Supermicro |
| Model | A4SAN-E |
| CPU | Intel Atom x7433RE (4 Cores, 1.5 GHz Base, 3.4 GHz Turbo) |
| Memory Support | 1x SO-DIMM, Non-ECC DDR5, up to 16 GB @ 4800 MT/s |
| Storage Interfaces | M.2 M-Key (SATA/PCIe x1), M.2 B-Key (PCIe x1/SATA/USB), M.2 E-Key (PCIe x1/USB/CNVi) |
| Network | Dual Intel I226-IT 2.5G RJ45 LAN |
| USB Ports | 4x USB 3.2 (10 Gbps) Type-A (rear), 1x USB 2.0 header |
| Video Output | 2x HDMI 1.4b (up to 4096x2160 @ 24 Hz), LVDS (1920x1080 @ 60 Hz) |
| Power Supply | DC 9V–36V via 8-pin connector, typical 12V adapter |
| Dimensions (Board) | 3.5" x 4.0" (L) x 5.75" (W) / 102 x 146 mm, height 27.8 mm |
| Weight (Board Only) | Approx. 227 g (0.5 lb) |
| Operating Temperature | -40°C to 60°C (A4SAN-E) |
| Storage Temperature | -40°C to 85°C |
| Humidity | 8%–90% (operating), 10%–95% (non-operating), non-condensing |
| Main Features | Fanless design, TPM 2.0 onboard, 4x COM ports, PoE support, wide input voltage |
| Maintenance | Keep free of dust; use ESD precautions; check fan (if used) for proper operation |
| Safety | Use only specified battery; avoid short circuits; professional installation recommended |
| Spare Parts & Reparability | Contact Supermicro authorized distributors for replacement parts |
| General Information | Designed for embedded/NAS applications; supports Intel DL Boost, OpenVINO |
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USER MANUAL A4SAN-E Supermicro
The information in this User's Manual has been carefully reviewed and is believed to be accurate. The vendor assumes no responsibility for any inaccuracies that may be contained in this document, and makes no commitment to update or to keep current the information in this manual, or to notify any person or organization of the updates. Note: For the most up-to-date version of this manual, see our website at https://www.supermicro.com.
Super Micro Computer, Inc. ("Supermicro") reserves the right to make changes to the product described in this manual at any time and without notice. This product, including software and documentation, is the property of Supermicro and/or its licensors, and is supplied only under a license. Any use or reproduction of this product is not allowed, except as expressly permitted by the terms of said license.
IN NO EVENT WILL Super Micro Computer, Inc. BE LIABLE FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, SPECULATIVE OR CONSEQUENTIAL DAMAGES ARISING FROM THE USE OR INABILITY TO USE THIS PRODUCT OR DOCUMENTATION, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. IN PARTICULAR, SUPER MICRO COMPUTER, INC. SHALL NOT HAVE LIABILITY FOR ANY HARDWARE, SOFTWARE, OR DATA STORED OR USED WITH THE PRODUCT, INCLUDING THE COSTS OF REPAIRING, REPLACING, INTEGRATING, INSTALLING OR RECOVERING SUCH HARDWARE, SOFTWARE, OR DATA.
Any disputes arising between manufacturer and customer shall be governed by the laws of Santa Clara County in the State of California, USA. The State of California, County of Santa Clara shall be the exclusive venue for the resolution of any such disputes. Supermicro's total liability for all claims will not exceed the price paid for the hardware product.
FCC Statement: This equipment has been tested and found to comply with the limits for a Class A or Class B digital device pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in industrial environment for Class A device or in residential environment for Class B device. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the manufacturer's instruction manual, may cause harmful interference with radio communications. Operation of this equipment in a residential area is likely to cause harmful interference, in which case you will be required to correct the interference at your own expense.
California Best Management Practices Regulations for Perchlorate Materials: This Perchlorate warning applies only to products containing CR (Manganese Dioxide) Lithium coin cells. "Perchlorate Material-special handling may apply. See https://www.dtsc.ca.gov/hazardouswaste/perchlorate".

WARNING: This product can expose you to chemicals including lead, known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to https://www.P65Warnings.ca.gov.
The products sold by Supermicro are not intended for and will not be used in life support systems, medical equipment, nuclear facilities or systems, aircraft, aircraft devices, aircraft/emergency communication devices or other critical systems whose failure to perform be reasonably expected to result in significant injury or loss of life or catastrophic property damage. Accordingly, Supermicro disclaims any and all liability, and should buyer use or sell such products for use in such ultra-hazardous applications, it does so entirely at its own risk. Furthermore, buyer agrees to fully indemnify, defend and hold Supermicro harmless for and against any and all claims, demands, actions, litigation, and proceedings of any kind arising out of or related to such ultra-hazardous use or sale.
Manual Revision 1.0
Release Date: July 23, 2024
Unless you request and receive written permission from Super Micro Computer, Inc., you may not copy any part of this document. Information in this document is subject to change without notice. Other products and companies referred to herein are trademarks or registered trademarks of their respective companies or mark holders.
Copyright © 2024 by Super Micro Computer, Inc.
All rights reserved.
Published in the United States of America
Preface
About This Manual
This manual is written for professional system integrators and PC technicians. It provides information for the installation and use of the A4SAN Series motherboard. Installation and maintenance should be performed by certified service technicians only.
Notes
For your system to work properly, follow the links below to download all necessary drivers/utilities and the user's manual for your server.
- Supermicro product manuals: https://www.supermicro.com/support/manuals
• Product drivers and utilities: https://www.supermicro.com/wdl - Product safety info: https://www.supermicro.com/about/policies/safety_information.cfm
- A secure data deletion tool designed to fully erase all data from storage devices can be found on our website:
https://www.supermicro.com/about/policies/disclaimer.cfm?url=/wdl/utility/Lot9_Secure_Data_Deletion_Utility - If you have any questions, contact our support team. Region-specific Technical Support email addresses can be found at: "Contacting Supermicro" on page 9
- If you have any feedback on Supermicro product manuals, contact our writing team at: Techwriterteam@supermicro.com
This manual may be periodically updated without notice. Check the Supermicro website for possible updates to the manual revision level.
Conventions Used in the Manual
Special attention should be given to the following symbols for proper installation and to prevent damage done to the components or injury to yourself.

Warning! Indicates important information given to prevent equipment/property damage or personal injury.

Warning! Indicates high voltage may be encountered while performing a procedure.
Important: Important information given to ensure proper system installation or to relay safety precautions.
Note: Additional Information given to differentiate various models or provides information for proper system setup.
Contents
Contacting Supermicro 9
Chapter 1: Introduction 10.
1.1 Quick Reference 1.1
Checklist 1.1
Motherboard Layout 12
Motherboard Mechanical Drawings 16
Quick Reference Table 18.
System Block Diagram 24.
1.2 Platform Overview 25
1.3 Special Features 27.
Recovery from AC Power Loss 27.
1.4 System Health Monitoring 28
Onboard Voltage Monitors 28
Fan Status Monitor with Firmware Control 28
Environmental Temperature Control 28.
1.5 ACPI Features 29
1.6 Power Supply 30
1.7 Super I/O 31
Chapter 2: Component Installation 32
2.1 Static-Sensitive Devices 33
Precautions 33
Unpacking 33
2.2 Motherboard Installation 34
Tools Needed 34
Installing the Motherboard 34
2.3 Memory Support and Installation 36
Memory Support and Installation 36
SO-DIMM Installation 36
SO-DIMM Removal 38
2.4 Battery Removal and Installation 39
Battery Removal 39
Proper Battery Disposal 39....
Battery Installation 39
2.5 Connections, Jumpers, and LEDs 41
Main Power Connector 4.1
Headers and Connections 41....
CMOS Battery 41
COM Headers 42
Fan Header 44
Front Panel Audio Header 45
General Purpose I/O Header 45
Low Voltage Differential Signaling 46
M.2 Slots 47
Nano SIM Card Slot 51
SMBus Header 52
Speaker Header 52
USB Header 52
USB 3.2 Port 53
Front Control Panel 53
Power Button 54
Reset Button 54
HDD LED 54
Power LED 55
Rear I/O Ports 55
Jumper Settings 56
LVDS Panel VCC Power 56
ME Manufacturing Mode 56
SIM Detect Option 57
Onboard TPM Enable/Disable 57
LED Indicators 58
Onboard Power LED 58
Chapter 3: Troubleshooting 59
3.1 Troubleshooting Procedures 60
Before Power On 60
No Power 60
No Video 60
System Boot Failure 61
Memory Errors 61
Losing the System's Setup Configuration 61
When the System Becomes Unstable 62
3.2 Technical Support Procedures 64
3.3 Motherboard Battery 65
3.4 Where to Get Replacement Components 66
3.5 Returning Merchandise for Service 67....
3.6 Feedback 68
Chapter 4: UEFI BIOS 69
4.1 Introduction 70
Updating BIOS 70
Starting the Setup Utility 70
4.2 Main Setup 72
4.3 Advanced Setup Configurations 75
ACPI Settings Menu 76
Boot Feature Menu 77
CPU Configuration Menu 78
Chipset Configuration Menu 82
Memory Configuration Menu 82
Graphics Configuration Menu 83
DMI/OPI Configuration Menu 85
GT - Power Management Control 85
HDD Security Configuration 87
PTN3460 Switch 87
GPIO Expander Header 88
HTTP Boot Configuration Menu 89
NCT6126 Super IO Configuration 90
Serial Port 1 Configuration Menu 90
Serial Port 2 Configuration Menu 90
Serial Port 3 Configuration Menu 90
Serial Port 4 Configuration Menu 91
Network Stack Configuration Menu 91
MAC:(MAC address)-IPv4 Network Configuration Menu 92
MAC:(MAC address)-IPv6 Network Configuration Menu 92
PCH-FW Configuration Menu 94.
PCIe/PCI/PnP Configuration Menu 94
SATA and RST Configuration Menu 97.
Serial Port Console Redirection Menu 97
Trusted Computing Menu 105.
USB Configuration Menu 107
Intel(R) Ethernet Controller Menu 1.08
Intel(R) Ethernet Controller Menu 1.08
TLS Authenticate Configuration Menu 1.09
Driver Health Menu 109
COM Port Mode Configuration Menu 1.10
4.4 Event Logs 1.1.1
4.5 Thermal & Fan 1.13
4.6 Security 1.16
Supermicro Security Erase Configuration Menu 1.17
Secure Boot Menu 118
4.7 Boot 122
4.8 Save & Exit 124
Appendix A: BIOS Codes 126
BIOS Codes 126
BIOS Error POST (Beep) Codes 126
Additional BIOS POST Codes 127
Appendix B: Software 128
B.1 Microsoft Windows OS Installation 129
Installing the OS 129
Appendix C: Standardized Warning Statements 132
Battery Handling 132
Product Disposal 134
Contacting Supermicro
Headquarters
Address: Super Micro Computer, Inc.
980 Rock Ave.
San Jose, CA 95131 U.S.A.
Tel: +1 (408) 503-8000
Fax: +1 (408) 503-8008
Email: Marketing@supermicro.com (General Information)
Sales-USA@supermicro.com (Sales Inquiries)
Government_Sales-USA@supermicro.com (Gov. Sales Inquiries)
Support@supermicro.com (Technical Support)
RMA@Supermicro.com (RMA Support)
Webmaster@supermicro.com (Webmaster)
Website: https://www.supermicro.com
Europe
Address: Super Micro Computer B.V.
's-Hertogenbosch, The Netherlands
Tel: +31 (0) 73-6400390
Fax: +31 (0) 73-6416525
Email: Sales_Europe@supermicro.com (Sales Inquiries)
Support_Europe@supermicro.com (Technical Support)
RMA_Europe@supermicro.com (RMA Support)
Website: https://www.supermicro.nl
Asia-Pacific
Address: Super Micro Computer, Inc.
3F, No. 150, Jian 1st Rd.
Zhonghe Dist., New Taipei City 235 Taiwan (R.O.C)
Tel: +886 (2) 8226-3990
Fax: +886 (2) 8226-3992
Email: Sales-Asia@supermicro.com.tw (Sales Inquiries)
Support@supermicro.com.tw (Technical Support)
RMA@supermicro.com.tw (RMA Support)
Website: https://www.supermicro.com.tw
Chapter 1:
Introduction
Congratulations on purchasing your computer motherboard from an industry leader. Supermicro motherboards are designed to provide you with the highest standards in quality and performance.
1.1 Quick Reference
For details on the A4SAN-H/-E/-L/-WOHS motherboard layout, features, and other quick reference information, refer to the content below.
Checklist
| Main Parts List (Retail Single Package) | ||
| Description Part Number Quantity | ||
| Supermicro Motherboard with Passive Heatsink (-WOHS SKU does not include a heatsink) | A4SAN-H/-E/-L 1 | |
| Audio Cable (line-out, mic-in) CBL-OTHR-0986 1 | ||
| COM Cable CBL-CDAT-0665 2 | ||
| USB Cable CBL-CUSB-0983 1 | ||
| DC IN Power Cable CBL-PWEX-1029 1 | ||
| Quick Reference Guide | MNL-2690-QRG | 1 |
| Main Parts List (Bulk Package) | ||
| Description Part Number | Quantity | |
| Supermicro Motherboard with Passive Heatsink (-WOHS SKU does not include a heatsink) | A4SAN-H/-E/-L 1 | |
| DC IN Power Cable CBL-PWEX-1029 1 | ||
| Optional Parts List | ||
| Description | Part Number | Quantity |
| Power Adapter | MCP-250-10134-0N | 1 |
| Heat Spreader | MCP-350-10105-0B | 1 |
| DC IN Power Cable (DC Jack) | CBL-PWEX-1110-15 1 | |
Motherboard Layout

natural_image
Close-up of a green printed circuit board with various electronic components and connectors (no readable text or symbols)Figure 1-1. A4SAN-H/-E/-L/-WOHS Motherboard Top Photo

Figure 1-2. A4SAN-H/-E/-L-WOHS Motherboard Bottom Photo

Figure 1-3. A4SAN-H/-E/-L/-WOHS Motherboard Top Layout

Figure 1-4. A4SAN-H/-E/-L/-WOHS Motherboard Bottom Layout
Notes:
- See "Component Installation" on page 32 for detailed information on jumpers, connectors, and LED indicators.
- "■" indicates the location of pin 1.
- Components not documented are for internal testing only.
- Use only the correct type of onboard CMOS battery as specified by the manufacturer. Do not install the onboard battery upside down to avoid possible explosion.
Motherboard Mechanical Drawings

Figure 1-5. A4SAN-H/-E/-L Top Layout Mechanical Drawing

Figure 1-6. A4SAN-H/-E/-L Bottom Layout Mechanical Drawing

Figure 1-7. A4SAN-H/-E/-L Back Panel Mechanical Drawing

Figure 1-8. A4SAN-H/-E/-L/-WOHS Back Panel Mechanical Drawing
Quick Reference Table
| Jumper Description Default Settings | ||
| JLCDPWR1 LV | VDS Panel VCC Power 3.3 V/5 V | Pins 1–3 (3.3 V)Pins 3–5 (5 V) |
| JPME2 | CMOS ClearME Manufacturing Mode | Pins 1–3 (Normal)Pins 3–5 (Clear CMOS)Pins 2–4 (Manufacturing Mode)Pins 4–6 (Normal) |
| JPT1 | Onboard TPM 2.0 Enable/DisableForce Power On | Pins 1–3 (Enabled)Pins 3–5 (Disabled)Pins 2–4 (Force Power On)Pins 4–6 (Power On by power button) |
| JSIM1_OPT | USB or PCIe Interface OptionalSIM DetectM.2 B-Key Storage LED | Pins 1–3 Short (USB)Pins 1–3 Open (PCIe)Pins 2–4 Short (Low Active)Pins 2–4 Open (High Active)Pins 5–6 Enable |
| Connector Description | |
| AUDIO FP Front Panel Audio Header (Line-out, Mic-in) | |
| BT1 CMOS Battery Header | |
| FAN1 Fan Header | |
| JCOM1,JCOM2 | JCOM1: COM1/2 header for two RS232/422/485JCOM2: COM3/4 header for two RS232 |
| JHDMI1,JHDMI2 | HDMI 1.4b Ports |
| JF1 Front Control Panel Header | |
| JGP1 General Purpose I/O Header | |
| JLAN1, JLAN2 | 2.5G LAN Ports |
| JPW1 9 V to 36 | V Power-in Connector |
| JPOE1 Power Over Ethernet (PoE) Power Internal Connector | |
| JSIM1 Nano SIM Card Slot | |
| JSMBUS1 SMBus/ I2C Header | |
| JSPKR1 Speaker-out with 3 W Amplifier | |
| LVDS1 Low Voltage Differential Signaling Connector (LVDS) | |
| M.2-B1 | M.2 B-Key 2242/2280/3052 Slot with Nano SIM and 5G support (PCIe 3.0 x1/SATA 3.0/USB 3.0/USB 2.0) |
| M.2-E1 M.2 E-Key 2230 Slot (PCIe 3.0 x1/USB 2.0/CNVi ) | |
| M.2-M1 M.2 M-Key 2242/2280 Slot (SATA 3.0/PCIe 3.0 x1) | |
| USB1/2, USB3/4 | USB 3.2 (10 Gb/s) Type-A ports on the rear I/O ports |
| USB5/6 USB 2.0 Header | |
| LED Description Status | ||
| LED1 Power LED | Green: System onRed: S5 or main power failOff: System off | |
| Motherboard Features |
| CPU |
| A4SAN-H/-WOHS supports an Intel ^ Atom ^ Processor x7835REA4SAN-E/-WOHS supports an Intel Atom Processor x7433REA4SAN-L/-WOHS supports an Intel Processor N97 |
| Memory |
| Supports up to 16 GB of Non-ECC DDR5 SO-DIMM with speeds of up to 4800 MT/s in a single slot |
| DIMM Size |
| 16 GB |
| Expansion Slots |
| One Nano SIM SlotOne M.2 M-Key 2242/2280 Slot (PCIe 3.0 x1 / SATA 3.0)One M.2 E-Key 2230 Slot (PCIe 3.0 x1/USB 2.0/CNVi), CNVi interface only supported by A4SAN-L/-WOHSOne M.2 B-Key 2242/2280/3052 Slot with Nano SIM and 5G support (PCIe 3.0 x1/SATA 3.0/USB 3.0/USB 2.0) |
| Network |
| Dual Intel i226-IT for dual 2.5G RJ45 LAN ports |
| Graphics |
| Intel Gen12 UHD Graphics: up to 32EUs, GFX SR-IOV, 4K at 60Hz, Open GL 4.6, DirectX 12.1, Vulkan 1.2, Mesa 3D, Open GL 4.6Hardware Accelerated Video Decode: MPEG2, WMV9 (VC1), AVC/H264, JPEG/MJPEG, HEVC/H265, VP9, AV1Hardware Accelerated Video Encode: MPEG2, AVC/H264, JPEG, HEVC/H265, VP9Display: Dual HDMI 1.4b (resolution up to 4096 x 2160 at 24 Hz), LVDS (dual channel 48-bit, resolution up to 1920 x 1080 at 60 Hz) |
| I/O Devices |
| LVDS (dual channel 48-bit, resolution up to 1920 x 1080 at 60 Hz)COM Headers: Two COM Headers (JCOM1: COM1/2 Header for two RS232/422/485, JCOM2: COM3/4 Header for two RS232)Audio Header: One HD Audio header with Line-out/Mic-inSpeaker Header: One Speaker Header (with 3 W audio amplifier)SMBus or I2C Header: One SMBus or I2C Box HeaderGPIO: One 8-bit General Purpose I/O (GPIO) header |
| Peripheral Devices |
| Four USB 3.2 (10Gb/s) Type-A ports in the back panelOne USB 2.0 HeaderBIOS |
| 256 Mb SPI AMI BIOS®ACPI 6.4, SMBIOS 3.3 or later, UEFI 2.7, PCI FW 3.0, Real Time Clock (RTC) wakeup, Watchdog |
| Power Management |
| ACPI Power Management (S3, S4, S5 supported)Power Button Override MechanismPower-on Mode for AC Power RecoveryWake-on-LAN through the UEFI BIOS optionForce Power On by jumperRTC Battery (typical voltage: 3.0 V, normal discharge capacity: 210 mAh)Supply Input Voltage: DC 9 V to 36 V |
| System Health Monitoring |
| Onboard voltage monitoring for +3.3 V, +5 V, +12 V, 3.3 V Standby, Vcore, Vmem, Vbat, CPU Temperature, PCH Temperature, and System TemperatureCPU Thermal Trip |
| Fan Control |
| 4-pin Fan HeaderLow-noise Fan Speed Control |
| System Management |
| Trusted Platform Module (TPM2.0) SupportSuperDoctor® 5Supermicro Update Manager SUM (InBand)Watchdog Timer |
| LED Indicators |
| Power/Suspend-state Indicator LEDHDD Activity LED |
| Dimensions |
| 3.5" x 4" (L) x 5.75" (W) (102 mm x 146 mm) SBCTotal Height: 1.09" (27.8 mm) (A4SAN-H/-E/-L)Total Height: 1.07" (27.22 mm) (A4SAN-H/-E/-L/-WOHS) |
| Environment |
| Operating Temperature Range:A4SAN-H/-E supports -40°C to 60°C (-40°F to 40°F) 70C support by requestA4SAN-L supports 0°C to 60°C (32°F to 140°F)A4SAN-H/-E/-WOHS supports -40°C to 85°C (-22°F to 185°F)A4SAN-L/-WOSH supports 0°C to 85°C (32°F to 185°F)Non-Operating Temperature Range: -40°C to 85°C (-40°F to 185°F)Operating Relative Humidity Range: 8% to 90% (non-condensing)Non-Operating Relative Humidity Range: 10% to 95% (non-condensing) |
| A4SAN Series Specification Chart | ||||||
| Model CPU | Base Frequency | Max Turbo Core | EU TDP | |||
| A4SAN-H X7835RE | 1.3 3.6 8 32 12 | |||||
| A4SAN-E X7433RE | 1.5 3.4 4 32 9 | |||||
| A4SAN-L N97 2.0 | 3.6 4 24 12 | |||||
| A4SAN-H-WOHS | X7835RE 1.3 3.6 | 8 32 12 | ||||
| A4SAN-E-WOHS | X7433RE 1.5 | 3.4 4 32 9 | ||||
| A4SAN-L-WOHS | N97 2.0 3.6 4 | 24 12 | ||||
A4SAN Series Specification Chart
| Model CPU | Operating Temperature | Thermal Solution | Functions | |
| A4SAN-H X7835RE | -40°C to 60°CNote: 70°C support by request | Passive | Two 2.5 GbE with PoETwo HDMI 1.4One 48-bit LVDSTwo RS-232/422/485Two RS-232Four USB 3.1 Gen2 Type-ATwo USB 2.0 (Header)One 8-bit GPIOOne Line-Out/Mic-InOne Speak Out with 3 WAMPOne TM 2.0 OnboardThree M.2 (B-key with SIM,E-key, M-key)One I^2C/SMBus | |
| A4SAN-E X7433RE | ||||
| A4SAN-L N97 0°C to 60°C | ||||
| A4SAN-H-WOHS | X7835RE | -40°C to 85°C | Designed by the user | |
| A4SAN-E-WOHS | X7433RE | |||
| A4SAN-L-WOHS | N97 0°C to 85°C | |||
System Block Diagram

flowchart
graph TD
subgraph Intel
A["LVDS1"] --> B["LP18"]
C["Rear HDMI connector HDMI1 1.4b"] --> D["PTN3460 eDP to LVDS"]
E["Rear HDMI connector HDMI2 1.4b"] --> F["P19"]
G["AUSB1"] --> H["TYPE-A"]
G --> I["TYPE-A"]
G --> J["AUSB2"]
G --> K["TYPE-A"]
G --> L["AUSB2"]
M["USB2.0 Header (USB 5)"] --> N["USB 2.0[5"]]
O["USB2.0 Header (USB 6)"] --> P["USB 2.0[6"]]
end
subgraph SIO
Q["NXP PCA9554"] --> R["SMBUS"]
S["FLASH SPI 256 Mbits"] --> T["Debug Header (Port 80)"]
U["TPM INFINEON SLB9672AU2.0"] --> V["SPI"]
end
subgraph Audio
W["SATA[0"]/PCIe["11"]] --> X["PCIe[7"]]
Y["PCIe[9"]] --> Z["PCIe[9"]]
AA["SATA 6 Gb/s"] --> AB["PCIe Gen3 x 1"]
AC["PCIe Gen3 x 1"] --> AD["GLAN1 INTEL I226IT"]
AE["PCIe Gen3 x 1"] --> AF["GLAN2 INTEL I226IT"]
AG["High Definition"] --> AH["REALTEK ALC888S-VD2-GR 0-70 degree"]
end
subgraph Max_16G_SO-DIMM_Support
AI["SINGLE CHANNEL DDR5 4800 MHz"] --> AJ["COMMA"]
AK["M.2 SLOT (B KEY)"] --> AL["USB LOW ACTIVE DETECTOR"]
AM["WLAN+BT M.2 SLOT (E KEY)"] --> AN["Nano SIM"]
end
subgraph I/O PANEL LAYOUT
AO["FRONT AUDIO Header (Mic-In/Line-out)"] --> AP["AUDIO AMP ALC105-VF"]
end
A -->|DDIA| B
A -->|DDIB| B
A -->|TCP0| B
A -->|USB 3.2["4"]| B
A -->|USB 2.0["1"]| B
A -->|USB 3.2["3"]| B
A -->|USB 2.0["2"]| B
A -->|USB 3.2["2"]| B
A -->|USB 2.0["3"]| B
A -->|USB 2.0["6"]| B
A -->|USB 2.0["8"]| B
A -->|USB 2.0["11"]| B
A -->|SATA["1"]/PCIe["12"]| B
A -->|PCIe["10"]| B
A -->|CNVI| B
A -->|SATA["0"]/PCIe["11"]| B
A -->|PCIe["9"]| B
A -->|Audio| B
B -->|SIO NCT6126D| C
C -->|ACOMI COM 1/2 (RS232/422/485)| D
C -->|ACOMI COM 3/4 (RS232)| E
Figure 1-9. A4SAN System Block Diagram
1.2 Platform Overview
Built upon the functionality and capability of the Intel ^® Atom SoC series processor, the A4SAN-H/-E/-L/-WOHS motherboard offers maximum I/O expandability, energy efficiency, and data reliability in a 10-nm process architecture, and is optimized for embedded storage solutions, networking applications, or cloud-computing platforms. The A4SAN-H/-E/-L/-WOHS drastically increases system performance for a multitude of server applications.
The A4SAN-H/-E/-L/-WOHS supports the following features:
- 16 GB of Non-ECC DDR5 SO-DIMM memory with speeds of up to 4800 MT/s in a single DIMM slot
• AI Acceleration with Intel Deep Learning Boost (VNNI), INT8 support
• Enhanced Intel SpeedStep ^® Technology
• Intel Speed Shift Technology - Adaptive Thermal Management/Monitoring
• System Management Bus (SMBus) Specification, Version 2.0 - Trusted Platform Module (TPM) 2.0 onboard with Disable/Enable jumper
- Intel Boot Guard, Intel Virtualization Technology (VT-x), Intel Virtualization Technology for Directed I/O (Intel VT-d)
• Intel Smart Sound Technology, Intel High-Definition Audio
The A4SAN-H/-E/-L motherboard is a 3.5" Single Board Computer (4.01" x 5.75") powered by the Intel Processor N Series and the Intel Atom X7000 series processors. These processors have a core configuration of up to 8 cores and an Intel UHD Graphics Gen12 with up to 32 EUs. DDR5 memory with support for In-Band Error Correction Code (IBECC) memory helps achieve reliable multitasking.
The A4SAN also features advanced technologies such as accelerated deep learning including Intel Deep Learning Boost (Intel DL Boost), Intel Advanced Vector Extensions (Intel AVX2) with INT8 support and media processing for IoT edge applications like digital signage, POS systems, and more. Support of the OpenVINO™ toolkit also delivers optimized performance while helping developers speed up time to market with pre-trained AI models for common use cases.
The A4SAN features a rich I/O interface including dual 2.5G LAN ports, one M.2 M-Key PCIe 3.0 x1/SATA 6Gb/s slot in the 2242/2280 form factor, one M.2 E-Key PCIe 3.0 x1/USB 2.0/Intel CNVi slot in the 2230 form factor, one M.2 B-Key SATA 6Gb/s or PCIe 3.0 x1/USB 3.0/USB 2.0
slot in the 2242/2280/3052 form factor with Nano SIM, four COM ports, four USB 3.2 ports in Type-A ports, and a speaker-out with a 3 W amplifier. The motherboard also features onboard TPM 2.0 without the TPM module.
The A4SAN supports a wide range of 9 V to 36 V DC input power to meet various embedded system requirements, such as transportation and medical applications. Based on numerous demands from embedded applications, Supermicro developed an optimized thermal solution for A4SAN, producing a fanless design on a rugged embedded system.
1.3 Special Features
Recovery from AC Power Loss
The Basic I/O System (BIOS) provides a setting that determines how the system will respond when AC power is lost and then restored to the system. You can choose for the system to remain powered off (in which case you must press the power switch to turn it back on), or for it to automatically return to the power-on state. See Advanced Setup Configurations under "UEFI BIOS" on page 69 for this setting. The default setting is Last State.
1.4 System Health Monitoring
Onboard Voltage Monitors
An onboard voltage monitor will continuously scan the voltages of the onboard chipset, memory, processor, and battery. Once a voltage becomes unstable, a warning is given or an error message is sent to the screen. The user can adjust the voltage thresholds to define the sensitivity of the voltage monitor. Real time voltage levels are displayed in IPMI.
Fan Status Monitor with Firmware Control
The system health monitor chip can check the RPM status of a cooling fan. The fans are controlled by the BIOS Thermal Management.
Environmental Temperature Control
The thermal control sensor monitors the CPU temperature in real time and will turn on the thermal control fan whenever the CPU temperature exceeds a user-defined threshold. The overheat circuitry runs independently from the CPU. Once the thermal sensor detects that the CPU temperature is too high, it will automatically turn on the thermal fan to prevent the CPU from overheating. The onboard chassis thermal circuitry can monitor the overall system temperature and alert the user when the chassis temperature is too high.
Note: To avoid possible system overheating, provide adequate airflow to your system.
1.5 ACPI Features
ACPI stands for Advanced Configuration and Power Interface. The ACPI specification defines a flexible and abstract hardware interface that provides a standard way to integrate power management features throughout a computer system, including its hardware, operating system and application software. This enables the system to automatically turn on and off peripherals such as CD-ROMs, network cards, hard disk drives, and printers.
In addition to enabling operating system-directed power management, ACPI also provides a generic system event mechanism for Plug and Play, an operating system-independent interface for configuration control. ACPI leverages the Plug and Play BIOS data structures while providing a processor architecture-independent implementation that is compatible with appropriate Windows operating systems. For detailed information regarding OS support, refer to the Supermicro website.
1.6 Power Supply
As with all computer products, a stable power source is necessary for proper and reliable operation. This is even more important for processors that have high CPU clock rates. In areas where noisy power transmission is present, you may choose to install a line filter to shield the computer from noise. It is recommended that you also install a power surge protector to help avoid problems caused by power surges.
1.7 Super I/O
The Super I/O provides four high-speed, 16550 compatible universal asynchronous receiver-transmitter (UART) serial communication ports. Each UART includes a 128 byte send-receive FIFO, a programmable baud rate generator, complete modem control capability, and a processor interrupt system. UARTs provide legacy speed with a baud rate of up to 115.2 Kbps as well as an advanced speed with baud rates of 250 K, 500 K, or 1 Mb/s, which support higher speed modems.
The Super I/O provides functions that comply with ACPI, which includes support of legacy and ACPI power management through a SMI or SCI function pin. It also features auto power management to reduce power consumption.
The IRQs, DMAs and I/O space resources of the Super I/O can be flexibly adjusted to meet ISA PnP requirements, which support ACPI and Advanced Power Management (APM).
Chapter 2:
Component Installation
This chapter provides instructions on installing and replacing main system components for the A4SAN-H/-E/-L/-WOHS motherboard. To prevent compatibility issues, only use components that match the specifications and/or part numbers given.
Installation or replacement of most components require that power first be removed from the system. Follow the procedures given in each section.
2.1 Static-Sensitive Devices
Electrostatic Discharge (ESD) can damage electronic components. To avoid damaging your motherboard, it is important to handle it very carefully. The following measures are generally sufficient to protect your equipment from ESD.
Precautions
- Use a grounded wrist strap designed to prevent static discharge.
- Touch a grounded metal object before removing the board from the antistatic bag.
- Handle the motherboard by its edges only. Do not touch its components, peripheral chips, memory modules, or gold contacts.
- When handling chips or modules, avoid touching their pins.
- Put the motherboard and peripherals back into their antistatic bags when not in use.
- For grounding purposes, make sure that your computer chassis provides excellent conductivity between the power supply, the case, the mounting fasteners, and the motherboard.
- Use only the correct type of onboard CMOS battery. Do not install the onboard battery upside down to avoid possible explosion.
Unpacking
The motherboard is shipped in antistatic packaging to avoid static damage. When unpacking the motherboard, make sure that the person handling it is static protected.
2.2 Motherboard Installation
All motherboards have standard mounting holes to fit different types of chassis. Make sure that the locations of all the mounting holes for both the motherboard and the chassis match.
Although a chassis may have both plastic and metal mounting fasteners, metal ones are highly recommended because they ground the motherboard to the chassis. Make sure that the metal standoffs click in or are screwed in tightly.
Tools Needed

natural_image
Technical line drawings of three screwdriver and nut components (no text or symbols)Figure 2-1. Torque Driver (1), Phillips Screws (4), Standoffs (4, only if needed)
Notes:
- To avoid damaging the motherboard and its components, do not use a force greater than 8 lbf-in on each mounting screw during motherboard installation.
- Some components are very close to the mounting holes. Take precautionary measures to avoid damaging these components when installing the motherboard to the chassis.
For a detailed diagram of the A4SAN-H/-E/-L/-WOHS motherboard, see the layout under Quick Reference.
Installing the Motherboard
- Install the I/O shield into the back of the chassis, if applicable.

natural_image
Line drawing of a 3D printer or scanner device with ventilation grille and control panel (no text or symbols)Figure 2-2. Install the I/O Shield
- Locate the mounting holes on the motherboard. See Motherboard Installation for the location.

Figure 2-3. Locate the Mounting Holes
- Locate the matching mounting holes on the chassis. Align the mounting holes on the motherboard against the mounting holes on the chassis.

Figure 2-4. Align the Mounting Holes
- Install standoffs in the chassis as needed.
- Install the motherboard into the chassis carefully to avoid damaging other motherboard components.
- Insert pan head #6 screws into the mounting holes on the motherboard and the matching mounting holes on the chassis.
- Make sure that the motherboard is securely placed in the chassis.
Note: Images displayed are for illustration only. The components installed in your system may or may not look exactly the same as the graphics shown in the manual.
2.3 Memory Support and Installation
Note: Check the Supermicro website for recommended memory modules.

Warning! Exercise extreme care when installing or removing memory modules to prevent any damage.
Memory Support and Installation
Note: Check the Supermicro website for recommended memory modules.

Warning! Exercise extreme care when installing or removing memory modules to prevent any damage.
The A4SAN-H/-E/-L/-WOHS motherboard supports up to 16 GB of Non-ECC DDR5 SO-DIMM memory with speeds of up to 4800 MT/s in a single slot.
SO-DIMM Installation
- Position the SO-DIMM module's bottom key so it aligns with the receptive point on the slot.

Figure 2-5. Insert the SO-DIMM
- Insert the SO-DIMM module vertically at about a 45 degree angle. Press down until the module locks into place.

Figure 2-6. Insert at a 45 degree angle
- The side clips will automatically secure the SO-DIMM module, locking it into place.

Figure 2-7. Secure the SO-DIMM
For a detailed diagram of the A4SAN-H/-E/-L/-WOHS motherboard, see the layout under "Quick Reference" on page 11.

Warning! Do not use excessive force when pressing the release tabs on the ends of the DIMM socket to avoid causing any damage to the memory module or the DIMM socket. Handle memory modules with care. Carefully follow all the instructions given in "Static-Sensitive Devices" on page 33 to avoid ESD-related damages done to your memory modules or components.
SO-DIMM Removal
Push the side clips at the end of the slot to release the SO-DIMM module. Pull the SO-DIMM module up to remove it from the slot.
For a detailed diagram of the A4SAN-H/-E/-L/-WOHS motherboard, see the layout under "Quick Reference" on page 11.
2.4 Battery Removal and Installation
Battery Removal
To remove the battery, follow the steps below:
- Power off your system and unplug your power cable.
- Remove the battery cable at the BT1 connector on the board.
- Remove the battery.
Proper Battery Disposal

Warning! Handle used batteries carefully. Do not damage the battery in any way; a damaged battery may release hazardous materials into the environment. Do not discard a used battery in the garbage or a public landfill. Comply with the regulations set up by your local hazardous waste management agency to dispose of your used battery properly.
Battery Installation
To install the battery, follow steps 1 and 2 above and continue below:
- Connect the battery cable into the battery connector (BT1) and push it down until you hear a click to ensure that the cable is securely locked.
- Use the foam tape on the back side of the battery to secure it to a flat surface on the bottom of the motherboard or a proper location in the system. Do not place the battery on
the heatsink.


Warning! When replacing a battery, be sure to only replace it with the same type.
2.5 Connections, Jumpers, and LEDs
Refer to the following sections for information about connections, jumpers, and LEDs for the A4SAN-H/-E/-L/-WOHS motherboard.
Main Power Connector
JPW1 is the 9 V–36 V DC power connector that provides power to the motherboard.
For a detailed diagram of the A4SAN-H/-E/-L/-WOHS motherboard, see the layout under "Quick Reference" on page 11.
| 8-pin 9 V–36 V PowerPin Definitions: Eight Total | |
| Pin# Definition | |
| 1–4 +9 V–36 V | |
| 5–8 GND | |
Headers and Connections
For information about the headers of the A4SAN-H/-E/-L/-WOHS motherboard, refer to the following content.
CMOS Battery
BT1 is a 2-pin header for an external battery. This connector is also used to clear the CMOS. To clear the CMOS, remove the battery, short pins 1–2 for more than 10 seconds and then install the battery.
For a detailed diagram of the A4SAN-H/-E/-L/-WOHS motherboard, see the layout under "Quick Reference" on page 11.
| CMOS BatteryPin Definitions: Two Total | |
| Pin# Description | |
| 1 P3V_BATTERY | |
| 2 GND | |
COM Headers
There are four COM ports: JCOM1 with support for two RS232/422/485 connections and JCOM2 with support for two RS232 connections. The manufacturer of the header is ACES Electronics, MPN 50419-02001. The mapping plug header for cable assembly is 50420-020KHK0-001. See the pin definition tables of the onboard headers and D-SUB of CBL-CDAT-0665. Refer to the corresponding table based on design requirements.
For a detailed diagram of the A4SAN-H/-E/-L/-WOHS motherboard, see the layout under "Quick Reference" on page 11.
| COM Port Pin Definitions(JCOM1, JCOM2)Pin Definitions: 19 Total | |||
| Pin# RS232 | RS422/485Full Duplex | RS485Half Duplex | |
| 1 SP_DCD1 TX-1 Data-1 | |||
| 2 SP_DSR1 | |||
| 3 SP_RXD1 TX+1 Data+1 | |||
| 4 SP_RTS1 | |||
| 5 SP_TXD1 RX+1 | |||
| 6 SP_CTS1 | |||
| 7 SP_DTR1 RX-1 | |||
| 8 SP_RI1 | |||
| 9 GND | |||
| 10 No Connection | |||
| 11 SP_DCD2 TX-2 Data-2 | |||
| 12 SP_DSR2 | |||
| 13 SP_RXD2 TX+2 Data+2 | |||
| 14 SP_RTS2 | |||
| 15 SP_TXD2 RX+2 | |||
| 16 SP_CTS2 | |||
| 17 SP_DTR2 RX-2 | |||
| 18 SP_RI2 | |||
| 19 SP_GND | |||
| COM Port Pin Definitions (COM3/COM4) Pin Definitions: 20 Total | |
| Pin# | RS232 |
| 1 | SP_DCD3 |
| 2 | SP_DSR3 |
| 3 | SP_RXD3 |
| 4 | SP_RTS3 |
| 5 | SP_TXD3 |
| 6 | SP_CTS3 |
| 7 | SP_DTR3 |
| 8 | SP_RI3 |
| 9 | GND |
| 10 | No Connection |
| 11 | SP_DCD4 |
| 12 | SP_DSR4 |
| 13 | SP_RXD4 |
| 14 | SP_RTS4 |
| 15 | SP_TXD4 |
| 16 | SP_CTS4 |
| 17 | SP_DTR4 |
| 18 | SP_RI4 |
| 19 | GND |
| 20 | No Connection |
| COM Port Pin Definitions(D-SUB from CBL-DAT-0665)Pin Definitions: 20 Total | |||
| Pin# RS232 | RS422/485Full Duplex | RS485Half Duplex | |
| 1 SP_DCD1 TX-1 Data-1 | |||
| 2 SP_RXD1 TX+1 Data+1 | |||
| 3 SP_TXD1 RX+1 | |||
| 4 SP_DTR1 RX-1 | |||
| 5 GND | |||
| 6 SP_DSR1 | |||
| 7 SP_RT1 | |||
| 8 SP_CTS1 | |||
| 9 SP_RI1 | |||
| 10 No Connection | |||
| 11 | SP_DCD2 TX-2 Data-2 | ||
| 12 | SP_RXD2 TX+2 Data+2 | ||
| 13 | SP_TXD2 RX+2 | ||
| 14 | SP_DTR2 RX-2 | ||
| 15 | GND | ||
| 16 | SP_DSR2 | ||
| 17 | SP_RTS2 | ||
| 18 | SP_CTS2 | ||
| 19 | SP_RI2 | ||
| 20 No Connection | |||
| COM Port Pin Definitions(D-SUB from CBL-CDAT-0665)Pin Definitions: 20 Total | |
| Pin# | RS232 |
| 1 | SP_DCD3 |
| 2 | SP_RXD3 |
| 3 | SP_TXD3 |
| 4 | SP_DTR3 |
| 5 | GND |
| 6 | SP_DSR3 |
| 7 | SP_RTS3 |
| 8 | SP_CTS3 |
| 9 | SP_RI3 |
| 10 | No Connection |
| 11 | SP_DCD4 |
| 12 | SP_RXD4 |
| 13 | SP_TXD4 |
| 14 | SP_DTR4 |
| 15 | GND |
| 16 | SP_DSR4 |
| 17 | SP_RTS4 |
| 18 | SP_CTS4 |
| 19 | SP_RI4 |
| 20 | No Connection |
Fan Header
The A4SAN-H/-E/-L motherboard has one 4-pin fan header. Although pins 1-3 of the fan headers are backward compatible with the traditional 3-pin fans, we recommend you use 4-pin fans to take advantage of the fan speed control via Pulse Width Modulation through the thermal management. This allows the fan speeds to be automatically adjusted based on the motherboard temperature.
For a detailed diagram of the A4SAN-H/-E/-L/-WOHS motherboard, see the layout under "Quick Reference" on page 11.
| 4-pin Fan HeaderPin Definitions: Four Total | |
| Pin# Definition | |
| 1 GND (Black) | |
| 2 +12 V (Red) | |
| 3 Tachometer | |
| 4 PWM Control | |
Front Panel Audio Header
A 10-pin front panel audio header located at J3 on the motherboard allows you to use the onboard sound for audio playback and input. Connect an audio cable to the header to use this feature. This header functions only between 0–60°C.
For a detailed diagram of the A4SAN-H/-E/-L/-WOHS motherboard, see the layout under "Quick Reference" on page 11.
| Audio HeaderPin Definitions: 10 Total | |||
| Pin# Definition Pin# Definition | |||
| 1 Microphone_Left 2 Audio_Ground | |||
| 3 Microphone_Right 4 Audio_Detect | |||
| 5 Line_2_Right 6 GND | |||
| 7 Jack_Detect 8 Key | |||
| 9 Line_2_Left 10 GND | |||
General Purpose I/O Header
One 8-bit General Purpose I/O (GPIO) header is located at JGP1. The GPIO header is a general purpose I/O expander on a pin header via the SMBus. Each pin can be configured to be an input pin or output pin in 2.54 mm pitch. The GPIO is controlled via the PCA9554APW 8-bit GPIO expansion from the PCH SMBus. The base address is 0xEFA0. The expander slace address is 0x4D for WRITE/READ.
For a detailed diagram of the A4SAN-H/-E/-L/-WOHS motherboard, see the layout under "Quick Reference" on page 11.
| GPIO HeaderPin Definitions: 10 Total | |||
| Pin# Description Pin# Description | |||
| 1 P3V3SB 2 GND | |||
| 3 GP_P3V3_GP0 4 GP_P3V3_GP4 | |||
| 5 GP_P3V3_GP1 6 GP_P3V3_GP5 | |||
| 7 GP_P3V3_GP2 8 GP_P3V3_GP6 | |||
| 9 GP_P3V3_GP3 10 GP_P3V3_GP7 | |||
Low Voltage Differential Signaling
LVDS1 on the bottom side of the motherboard is the LVDS connector. Low-voltage differential signaling (LVDS) is a high-speed digital interface that operates at low power. It is a type of connection that is mostly used with monitors.
For a detailed diagram of the A4SAN-H/-E/-L/-WOHS motherboard, see the layout under "Quick Reference" on page 11.
| LVDS ConnectorPin Definitions: 40 Total | |||
| Pin# Description Pin# Descritption | |||
| 1 12 V 2 12 V | |||
| 3 12 V 4 12 V | |||
| 5 12 V 6 GND | |||
| 7 3.3/5 V 8 GND | |||
| 9 LCDVCC 10 LCDVCC | |||
| 11 DDC CLK 12 DDC DATA | |||
| 13 BKLTQTL 14 PVCCEN | |||
| 15 BKLTEN 16 GND | |||
| 17 LVDSA D0N 18 LVDSA D0P | |||
| 19 LVDSA D1N 20 LVDSA D1P | |||
| 21 LVDSA D2N 22 LVDSA D2P | |||
| 23 LVDSA CLKN 24 LVDSA CLKP | |||
| 25 LVDSA D3N 26 LVDSA D3P | |||
| 27 GND 28 GND | |||
| 29 LVDSB | D0N 30 LVDSB D0P | ||
| 31 LVDSB | D1N 32 LVDSB D1P | ||
| 33 LVDSB | D2N 34 LVDSB D2P | ||
| 35 LVDSB | CLKN 36 LVDSB CLKP | ||
| 37 LVDSB | D3N 38 LVDSB D3P | ||
| 39 GND 40 GND | |||
M.2 Slots
The motherboard has three M.2 slots (JMD1, JMD2, JMD3). M.2 was formerly known as Next Generation Form Factor (NGFF) and serves to replace mini PCIe. M.2 allows for a variety of card sizes, increased functionality, and spatial efficiency. The M.2 M-Key slot on the motherboard supports SATA 3.0/PCIe 3.0 Gen 3 x1 devices in a 2242/2280 form factor. The M.2 B-Key slot supports Nano SIM/5G/PCIe x1/SATA 3.0/USB 3.0/USB 2.0 devices in a 2242/2280/3052 form factor. The M.2 E-Key slot supports PCIe x1/USB 2.0/CNVi devices in a 2230 form factor. For B-Key 3052 support, use an MCP-410-00021-0N bracket.
For a detailed diagram of the A4SAN-H/-E/-L/-WOHS motherboard, see the layout under "Quick Reference" on page 11.
| M.2 B-KeyPin Definitions: 75 Total | |||
| Pin# Definition Pin# Definition | |||
| 1 No Connection 2 P3V3SB | |||
| 3 GND | 4 P3V3$B | ||
| 5 GND | 6 FULL_CARD_POWER_OFF# (PU to P1V8SB only) | ||
| 7 USB_D- | 8 W_DISABLE1#(PU to P3V3SB only) | ||
| 9 USB_D- | 10 LED_N | ||
| 11 GND | 12 KEY_B | ||
| 13 KEY_B | 14 KEY_B | ||
| 15 KEY_B | 16 KEY_B | ||
| 17 KEY_B | 18 KEY_B | ||
| 19 KEY_B | 20 PC_E_DIS | ||
| 21 No Connection 22 VBUS_SENSE | |||
| 23 WAKE_ON_WWAN#(PU to P1V8SB) 24 No Connection | |||
| 25 No Connection 26 W_DISABLE2#(PU to P1V8SB only) | |||
| 27 GND 28 No Connection | |||
| 29 USB3.0-Rx- 30 UIM-RESET | |||
| 31 USB3.0-Rx+ 32 UIM-CLK | |||
| 33 GND 34 UIM-DATA | |||
| 35 USB3.0-Tx- 36 UIM-PWR | |||
| 37 USB3.0-Tx+ 38 No Connection | |||
| 39 GND 40 No Connection | |||
| 41 SATA-B+/PERn0 42 No Connection | |||
| 43 SATA-B-/PERp0 44 Alert# (PU to P1V8SB only) | |||
| 45 GND 46 No Connection | |||
| 47 SATA-A-/PETn0 48 No Connection | |||
| 49 SATA-A+/PETp0 50 PERST# | |||
| 51 GND 52 CLKRED# | |||
| 53 REFCLKn 54 PEWAKE# | |||
| 55 REFCLKp 56 No Connection | |||
| 57 GND 58 No Connection | |||
| 59 No Connection 60 CNV_PA_BLANKING | |||
| 61 No Connection 62 CNV_MFUART2_TXD | |||
| 63 No Connection 64 CNV_MFUART2_RXD | |||
| 65 No Connection 66 SIM_DETECT | |||
| 67 RESET# 68 No Connection | |||
| 69 No Connection 70 P3V3SB | |||
| 71 GND 72 P3V3SB | |||
| 73 GND 74 P3V3SB | |||
| 75 No Connection | |||
| M.2 E-KeyPin Definitions: 75 Total | |||
| Pin# Definition Pin# Definition | |||
| 1 GND 2 P3V3SB | |||
| 3 USB_D-4 P3V3SB | |||
| 5 USB_D-6 No Connection | |||
| 7 GND 8 CNV_BT_I2C_SCLK | |||
| 9 CNV_WR_LANE1_DN 10 CNV_RF_RESET_N | |||
| 11 CNV_WR_LANE1_DP 12 CNV_BT_I2S_SDO | |||
| 13 GND 14 MODEM_CLKREQ | |||
| 15 CNV_WR_LANE0_DN 16 No Connection | |||
| 17 CNV_WR_LANE0_DP 18 GND | |||
| 19 GND 20 UART_BT_WAKE_N | |||
| 21 CNV_WR_CLK_DN 22 CNV_BR_RSP | |||
| 23 CNV_WR_CLK_DP 24 KEY E | |||
| 25 KEY E 26 KEY E | |||
| 27 KEY E 28 KEY E | |||
| 29 KEY E 30 KEY E | |||
| 31 KEY E 32 CNV_RGI_DT | |||
| 33 GND 34 CNV_RGI_RSP | |||
| 35 PETp0 36 CNV_BRI_DT | |||
| 37 PETn0 38 CLINK_RST_N | |||
| 39 GND 40 CLINK_DATA | |||
| 41 PERp0 42 CLINK_CLK | |||
| 43 PERn0 44 CNV_PA_BLANKING | |||
| 45 GND 46 CNV_MFUART2_TXD | |||
| 47 REFCLKp0 48 CNV_MFUART2_RXD | |||
| 49 REFCLKn0 50 SUSCLK | |||
| 51 GND 52 PERST0# | |||
| 53 CLKREQ0# 54 BT_DISABLE2# | |||
| 55 PEWAKE0# 56 WIFI_DISABLE2# | |||
| 57 GND 58 No Connection | |||
| 59 CNV_WT_LANE1_DN 60 No Connection | |||
| 61 CNV_WT_LANE1_DP 62 No Connection | |||
| 63 GND 64 No Connection | |||
| 65 CNV_WT_LANE0_DN 66 No Connection | |||
| 67 CNV_WT_LANE0_DP 68 No Connection | |||
| 69 GND 70 No Connection | |||
| 71 CNV_WT_CLK_DN 72 P3V3SB | |||
| 73 CNV_WT_CLK_DP 74 P3V3SB | |||
| 75 GND | |||
| M.2 M-KeyPin Definitions: 75 Total | |||
| Pin# Definition Pin# Definition | |||
| 1 GND 2 | P3V3 | ||
| 3 GND 4 | P3V3 | ||
| 5 No Connection 6 No Connection | |||
| 7 No Connection 8 No Connection | |||
| 9 GND 10 | LED_N | ||
| 11 No Connection 12 P3V3 | |||
| 13 No Connection 14 P3V3 | |||
| 15 GND 16 P3V3 | |||
| 17 No Connection 18 P3V3 | |||
| 19 No Connection 20 No Connection | |||
| 21 GND 22 No Connection | |||
| 23 No Connection 24 No Connection | |||
| 25 No Connection 26 No Connection | |||
| 27 GND 28 No Connection | |||
| 29 No Connection 30 No Connection | |||
| 31 No Connection 32 No Connection | |||
| 33 GND 34 No Connection | |||
| 35 No Connection 36 No Connection | |||
| 37 No Connection 38 No Connection | |||
| 39 GND 40 No Connection | |||
| 41 SATA-B+/PERn0 42 No Connection | |||
| 43 SATA-B-/PERp0 44 No Connection | |||
| 45 GND 46 No Connection | |||
| 47 SATA-A-/PETn0 48 No Connection | |||
| 49 SATA-A+/PETp0 50 PERST# | |||
| 51 GND 52 CLKREQ# | |||
| 53 REFCLKn 54 No Connection | |||
| 55 REFCLKp 56 No Connection | |||
| 57 GND 58 No Connection | |||
| 59 KEY M 60 KEY M | |||
| 61 KEY M 62 KEY M | |||
| 63 KEY M 64 KEY M | |||
| 65 KEY M 66 KEY M | |||
| 67 No Connection 68 SUSCLK | |||
| 69 PEDET 70 P3V3 | |||
| 71 GND 72 P3V3 | |||
| 73 GND 74 P3V3 | |||
| 75 GND | |||
Nano SIM Card Slot
The JSIM1 slot supports a Nano SIM card.
For a detailed diagram of the A4SAN-H/-E/-L/-WOHS motherboard, see the layout under "Quick Reference" on page 11.
SMBus Header
A System Management Bus header for additional slave devices or sensors is located at JSMBUS1.
For a detailed diagram of the A4SAN-H/-E/-L/-WOHS motherboard, see the layout under "Quick Reference" on page 11.
| SMBus HeaderPin Definitions: Four Total | |
| Pin# Definitions | |
| 1 SMB_CLK | |
| 2 SMB_DATA | |
| 3 GND | |
| 4 5 V | |
Speaker Header
The speaker-out with a 3 W amplifier (JSPKR1) is used to amplify low-power electronic audio signals to a level that is high enough for current driving loudspeakers and headphones.
For a detailed diagram of the A4SAN-H/-E/-L/-WOHS motherboard, see the layout under "Quick Reference" on page 11.
| Speaker HeaderPin Definitions: Four Total | |
| Pin# Definition | |
| 1 SPEAKER_LN_OUT | |
| 2 SPEAKER_LP_OUT | |
| 3 SPEAKER_RN_OUT | |
| 4 SPEAKER_RP_OUT | |
USB Header
The motherboard has one front-accessible USB 2.0 header (USB5/6). The onboard header provides front-side USB access with a cable.
For a detailed diagram of the A4SAN-H/-E/-L/-WOHS motherboard, see the layout under "Quick Reference" on page 11.
| (USB 2.0) HeaderPin Definitions: 10 Total | |||
| Pin# Definition Pin# Definition | |||
| 1 +5 V 2 +5 V | |||
| 3 USB_N | 4 USB_N | ||
| 5 USB_P | 6 USB_P | ||
| 7 GND 8 GND | |||
| 9 Key 10 No Connection | |||
USB 3.2 Port
There are four USB 3.2 (USB1/2, USB3/4) ports on the rear I/O ports.
For a detailed diagram of the A4SAN-H/-E/-L/-WOHS motherboard, see the layout under "Quick Reference" on page 11.
| USB1/2, USB3/4 (USB 3.2 Gen 1)Pin Definitions: 18 Total | |||
| Pin# Definition Pin# Definition | |||
| A1 | VBUS | B1 | VBUS |
| A2 | D- | B2 | D- |
| A3 | D+ | B3 | D+ |
| A4 | GND | B4 | GND |
| A5 | Stda_SSRX- B5 | Stda_SSRX- | |
| A6 | Stda_SSRX+ B6 | Stda_SSRX+ | |
| A7 | GND | B7 | GND |
| A8 | Stda_SSTX- | B8 | Stda_SSTX- |
| A9 | Stda_SSTX+ | B9 | Stda_SSTX+ |
Front Control Panel
JF1 on the A4SAN-H/-E/-L/-WOHS motherboard contains header pins for various buttons and indicators that are normally located on a control panel at the front of the chassis. These connectors are designed specifically for use with the Supermicro chassis. See the figure below for the descriptions of the front control panel buttons and LED indicators.
For a detailed diagram of the A4SAN-H/-E/-L/-WOHS motherboard, see the layout under "Quick Reference" on page 11.

Power Button
The Power Button connection is located on pins 1 and 2 of JF1 on the A4SAN-H/-E/-L/-WOHS motherboard. Momentarily contacting both pins will power on/off the system. This button can also be configured to function as a suspend button (with a setting in the BIOS). To turn off the power when the system is in suspend mode, press the button for four seconds or longer.
| Power ButtonPin Definitions (JF1) | |
| Pin# Definition | |
| 1 Power Button | |
| 2 GND | |
Reset Button
The Reset Button connection is located on pins 3 and 4 of JF1 on the A4SAN-H/-E/-L/-WOHS motherboard. Attach it to a hardware reset switch on the computer case to reset the system.
| Reset ButtonPin Definitions (JF1) | |
| Pin# Definition | |
| 3 Reset Button | |
| 4 GND | |
HDD LED
The HDD LED connection is located on pins 5 and 6 of JF1 on the A4SAN-H/-E/-L/-WOHS motherboard. Refer to the table below for pin definitions.
For a detailed diagram of the A4SAN-H/-E/-L/-WOHS motherboard, see the layout under Quick Reference.
| HDD LEDPin Definitions (JF1) | |
| Pin# Definition | |
| 5 3.3 V | |
| 6 HDD LED | |
Power LED
The Power LED connection is located at pins 7 and 8 of JF1. Refer to the table below for pin definitions.
| Power LEDPin Definitions (JF1) | |
| Pin# Definition | |
| 7 3.3 V Stby | |
| 8 Power LED | |
Rear I/O Ports

Figure 2-8. Rear I/O Ports
| Rear I/O Ports | |||
| # Description # Description | |||
| 1 LAN1 5 USB2 (3.2) | |||
| 2 LAN2 6 USB3 (3.2) | |||
| 3 JHDMI1 7 USB4 (3.2) | |||
| 4 USB1 (3.2) 8 JHDMI2 | |||
Jumper Settings
To modify the operation of the motherboard, jumpers can be used to choose between optional settings. Jumpers create shorts between two pins to change the function of the connector. Pin 1 is identified with a square solder pad on the printed circuit board. See the diagram below for an example of jumping pins 1 and 2. Refer to the motherboard layout page for jumper locations.
Note: On two-pin jumpers, "Closed" means the jumper is on and "Open" means the jumper is off the pins.

LVDS Panel VCC Power
Use the JCLDPWR1 jumper to select the power voltage for the LVDS panel. Make sure that the specifications of the cable are compatible with the panel to prevent damage.
For a detailed diagram of the A4SAN-H/-E/-L/-WOHS motherboard, see the layout under "Quick Reference" on page 11.
| LVDS Voltage SelectionJumper Settings | |
| Jumper Setting | Definition |
| Pins 1–3 3.3 V (Default) | |
| Pins 3–5 5 V | |
ME Manufacturing Mode
Close pins 2–4 of jumper JPME2 to bypass SPI flash security and force the system to operate in the manufacturing mode, which will allow the user to flash the system firmware from a host server for system setting modifications. Refer to the table below for jumper settings. The default
setting is Normal.
For a detailed diagram of the A4SAN-H/-E/-L/-WOHS motherboard, see the layout under "Quick Reference" on page 11.
| ME Manufacturing ModeJumper Settings | |
| Jumper Setting | Definition |
| Pins 2–4 Manufacturing Mode | |
| Pins 4–6 Normal (Default) | |
SIM Detect Option
Pins 2 and 4 on the JSIM1_OPT jumper are for SIM card detection. Since each SIM card vendor sets a different condition for detection, check with the vendor for the correct detection type and set the JSIM1_OPT jumper before installing the SIM card. Pins 1 and 3 on the JSIM1_OPT jumper are for 5G/LTE USB/PCIe module detection. Check with the vendor for the correct detection type and set the JSIM1_OPT jumper before installing the module. Pins 5 and 6 on the JSIM1_OPT jumper are for enabling or disabling M.2 B-Key storage module LED signal to the front panel HDD LED. Disconnect pins 5 and 6 to disable the LED signal.
For a detailed diagram of the A4SAN-H/-E/-L/-WOHS motherboard, see the layout under "Quick Reference" on page 11.
| SIM Detect OptionJumper Settings | |
| Jumper Settings Definition | |
| Pins 1–3 USB (Default) | |
| Pins 1–3 Open PCIe Low Active | |
| Pins 2–4 SIM Detect Low Active (Default) | |
| Pins 2–4 Open SIM Detect High Active | |
| Pins 5–6 M.2 B-Key Storage LED Enabled (Default) | |
| Pins 5–6 Open M.2 B-Key Storage LED Disabled |
Onboard TPM Enable/Disable
The JPT1 jumper has two functions. Use it to enable or disable the onboard TPM. It can also be used as a force power on feature.
For a detailed diagram of the A4SAN-H/-E/-L/-WOHS motherboard, see the layout under "Quick Reference" on page 11.
| TPM Enable/DisableJumper Settings | |
| JumperSetting | Definition |
| 1–3 | Enabled(Default) |
| 3–5 Disabled | |
| Force Power OnJumper Settings | |
| JumperSetting | Definition |
| 2–4 Force Power On | |
| 4–6 | Power On bypower button |
LED Indicators
For information about the LED indicators on the A4SAN-H/-E/-L/-WOHS motherboard, refer to the following content.
Onboard Power LED
The Onboard Power LED is located at on the A4SAN-H/-E/-L/-WOHS motherboard. When this LED is on, the system is on. Be sure to turn off the system and unplug the power cord before removing or installing components.
For a detailed diagram of the A4SAN-H/-E/-L/-WOHS motherboard, see the layout under "Quick Reference" on page 11.
| Onboard Power LED Indicator | |
| LED Color Definition | |
| Green System On | |
| Red S5 or Main Power Fail | |
| Off System Off (power cable not connected) | |
Chapter 3:
Troubleshooting
The following content contains information on common issues and how to resolve them.
3.1 Troubleshooting Procedures
Use the following procedures to troubleshoot your system. If you have followed all of the procedures below and still need assistance, refer to the "Technical Support Procedures" on page 64 or "Returning Merchandise for Service" on page 67 section(s) in this chapter. Always disconnect the AC power cord before adding, changing or installing any non hot-swap hardware components. If the below steps do not fix the setup configuration problem, contact your vendor for repairs.
Before Power On
- Make sure that there are no short circuits between the motherboard and chassis.
- Disconnect all ribbon/wire cables from the motherboard, including those for the keyboard and mouse.
- Remove all add-on cards.
- Connect the front panel connectors to the motherboard.
No Power
This motherboard features an Onboard Power LED at LED1. Before following the procedures in this section, check if LED1 is off. If LED1 is off, refer to this procedure:
- Make sure that there are no short circuits between the motherboard and the chassis.
- Make sure that the power connectors are properly connected.
- Check that the 115 V/230 V switch, if available, on the power supply is properly set.
- Turn the power switch on and off to test the system, if applicable.
- Check the processor socket for bent pins and make sure the processor is fully seated.
- The battery on your motherboard may be old. Check to verify that it still supplies approximately 3 VDC. If it does not, replace it with a new one.
No Video
- See if the Onboard Power LED at LED1 is green. If the LED is off, check the "No Power" section of this chapter. If the LED is red, check the "System Boot Failure" section of this chapter.
- If the power is on, but you do not have video, remove all add-on cards and cables.
- Make sure the video cables are properly connected.
System Boot Failure
If the system does not display Power-On-Self-Test (POST) or does not respond after the power is turned on, or LED1 is red, do the following:
- Check the screen for an error message.
- Clear the CMOS settings by unplugging the power cord and contacting both pads on the CMOS clear jumper. Restart the system. Refer to CMOS Clear.
- Remove all components from the motherboard, especially the DIMMs. Power on the system and check if the power-on LED and system fans are spinning.
- Turn on the system with only one DIMM installed. If the system boots, check for bad DIMMs or slots by following the Memory Errors Troubleshooting procedure in this chapter.
Memory Errors
When suspecting faulty memory is causing the system issue, check the following:
- Make sure that the memory modules are compatible with the system and are properly installed. See "Component Installation" on page 32 for installation instructions. (For memory compatibility, refer to the "Tested Memory List" link on the motherboard's product page to see a list of supported memory.)
- Check if different speeds of DIMMs have been installed. It is strongly recommended that you use the same RAM type and speed for all DIMMs in the system.
- Make sure that you are using the correct type of DIMMs recommended by the manufacturer.
- Check for bad DIMMs or slots by swapping a single module among all memory slots and check the results.
- Make sure that all memory modules are fully seated in their slots. Follow the instructions given in Section 2-4 in Chapter 2.
- Follow the instructions given in the DIMM population tables listed in Section 2-4 to install your memory modules.
Losing the System's Setup Configuration
-
Make sure that you are using a high-quality power supply. A poor-quality power supply may cause the system to lose the CMOS setup information. Refer to "Introduction" on page 10 for details on recommended power supplies.
-
The battery on your motherboard may be old. Check to verify that it still supplies approximately 3 VDC. If it does not, replace it with a new one.
When the System Becomes Unstable
A. If the system becomes unstable during or after OS installation, check the following:
1. Processor/BIOS support: Make sure that your processor is supported and that you have the latest BIOS installed in your system.
2. Memory support: Make sure that the memory modules are supported. Refer to the product page on our website at https://www.supermicro.com. Test the modules using memtest86 or a similar utility.
Note: Click on the "Tested Memory List" link on the motherboard's product page to see a list of supported memory.
3. Storage Drive support: Make sure that all storage drives work properly. Replace the failed storage drives with good ones.
4. System cooling: Check the system cooling to make sure that all heatsink fans and processor/system fans, etc., work properly. Check the hardware monitoring settings in the IPMI to make sure that the processor and system temperatures are within the normal range. Also, check the front panel Overheat LED and make sure that it is not on.
5. Adequate power supply: Make sure that the power supply provides adequate power to the system. Make sure that all power connectors are connected. Refer to our website for more information on the minimum power requirements.
6. Proper software support: Make sure that the correct drivers are used.
B. If the system becomes unstable before or during OS installation, check the following:
-
Source of installation: Make sure that the devices used for installation are working properly, including boot devices such as a USB flash or media device.
-
Cable connection: Check to make sure that all cables are connected and working properly.
-
Using the minimum configuration for troubleshooting: Remove all unnecessary components (starting with add-on cards first), and use the minimum configuration (but with the processor and a memory module installed) to identify the trouble areas. Refer to the steps listed above in this section for proper troubleshooting procedures.
-
Identifying bad components by isolating them: If necessary, remove a component in question from the chassis, and test it in isolation to make sure that it works properly. Replace a bad component with a good one.
- Check and change one component at a time instead of changing several items at the same time. This will help isolate and identify the problem.
- To find out if a component is good, swap this component with a new one to see if the system will work properly. If so, then the old component is bad. You can also install the component in question in another system. If the new system works, the component is good and the old system has problems.
3.2 Technical Support Procedures
Before contacting Technical Support, take the following steps. Also, note that as a motherboard manufacturer, Supermicro also sells motherboards through its channels, so it is best to first check with your distributor or reseller for troubleshooting services. They should know of any possible problems with the specific system configuration that was sold to you.
- Refer to Troubleshooting Procedures or see the FAQs on our website (https://www.supermicro.com/FAQ/index.php) before contacting Technical Support.
- BIOS upgrades can be downloaded from our website (https://www.supermicro.com/support/resources/bios_ipmi.php).
-
If you still cannot resolve the problem, include the following information when contacting Supermicro for technical support:
-
Motherboard model and PCB revision number
- BIOS release date/version (This can be seen on the initial display when your system first boots up.)
-
System configuration
-
An example of a Technical Support form is on our website at https://webpr3.supermicro.com/SupportPortal.
-
Distributors: For immediate assistance, have your account number ready when placing a call to our Technical Support department. For Supermicro contact information, refer to "Contacting Supermicro" on page 9.
3.3 Motherboard Battery
For information on removing, disposing of, and replacing the motherboard battery of your system, refer to "Battery Removal and Installation" on page 39.
3.4 Where to Get Replacement Components
If you need replacement parts for your A4SAN-H/-E/-L/-WOHS motherboard, to ensure the highest level of professional service and technical support, purchase exclusively from our Supermicro Authorized Distributors/System Integrators/Resellers. A list can be found at https://www.supermicro.com. Under the "Buy" menu, click the "Where to Buy" link.
3.5 Returning Merchandise for Service
A receipt or copy of your invoice marked with the date of purchase is required before any warranty service will be rendered. You can obtain service by calling your vendor for a Returned Merchandise Authorization (RMA) number. When returning the motherboard to the manufacturer, the RMA number should be prominently displayed on the outside of the shipping carton, and the shipping package is mailed prepaid or hand-carried. Shipping and handling charges will be applied for all orders that must be mailed when service is complete.
For faster service, RMA authorizations may be requested online (https://www.supermicro.com/RmaForm).
Whenever possible, repack the motherboard in the original Supermicro carton, using the original packaging material. If these are no longer available, be sure to pack the motherboard securely, using packaging material to surround the motherboard so that it does not shift within the carton and become damaged during shipping.
This warranty only covers normal consumer use and does not cover damages incurred in shipping or from failure due to the alternation, misuse, abuse or improper maintenance of products.
During the warranty period, contact your distributor first for any product problems.
3.6 Feedback
Supermicro values your feedback as we strive to improve our customer experience in all facets of our business. Email us at Techwriterteam@supermicro.com to provide feedback on our manuals.
Chapter 4:
UEFI BIOS
The following content contains information on BIOS configuration with the A4SAN-H/-E/-L/-WOHS motherboard.
4.1 Introduction
This chapter describes the AMIBIOS ^™ Setup utility for the motherboard. The BIOS is stored on a chip and can be easily upgraded using a flash program.
Note: Due to periodic changes to the BIOS, some settings may have been added or deleted and might not yet be recorded in this manual. Refer to the Manual Download area of our website for any changes to BIOS that may not be reflected in this manual.
Updating BIOS
It is recommended that you do not upgrade your BIOS if you are not experiencing any problems with your system. Updated BIOS files are located on our website at
https://www.supermicro.com/support/resources/bios_ipmi.php. Check our BIOS warning message and the information on how to update your BIOS on our website. Select your motherboard model and download the BIOS file to your computer. Also, check the current BIOS revision to make sure that it is newer than your BIOS before downloading.
Unzip the BIOS file onto a bootable USB device and then boot into the built-in UEFI Shell and type "flash.nsh

Warning! Do not shut down or reset the system while updating the BIOS to prevent possible system boot failure! Read the X14 README file carefully before you perform the BIOS update.
Starting the Setup Utility
To enter the BIOS Setup Utility, hit the Delete key while the system is booting-up. In most cases, the
The Main BIOS screen has two main frames. The left frame displays all the options that can be configured. "Grayed-out" options cannot be configured. The right frame displays the key legend. Above the key legend is an area reserved for a text message. When an option is
selected in the left frame, it is highlighted in white. Often a text message accompany it. (Note that BIOS has default text messages built in. We retain the option to include, omit, or change any of these text messages.) Settings printed in Bold are the default values.
A "▶" indicates a submenu. Highlighting such an item and pressing the
The BIOS setup utility uses a key-based navigation system called hot keys. Most of these hot keys (
4.2 Main Setup
When you first enter the AMI BIOS Setup utility, you enter the Main setup screen. You can always return to the Main setup screen by selecting the Main tab on the top of the screen. The Main BIOS setup screen is shown below.
| Aptio Setup - AMI Main Advanced Event Logs Thermal & Fan Security Boot Save & Exit | ||
| System Date [Sat 01/02/2021] System Time [22:00:3H] | Set the Date. Use Tab to switch between Date elements. Default Ranges: Year: 1998-9999 Months: 1-12 Days: Dependent on month Range of Years may vary. | |
| Supermicro A4SAN-L BIOS Version T20240617090303 Build Date 06/17/2024 | ||
| Memory Information Total Memory 16384 MB | ||
| +: Select Screen T↓: Select Item Enter: Select +/-: Change Opt. F1: General Help F2: Previous Values F3: Optimized Defaults F4: Save & Exit F5: Keyword Search ESC: Exit | ||
Figure 4-1. Main Setup
System Date/System Time
Use the two features to change the system date and time. Highlight System Date or System Time using the arrow keys. Enter new values using the keyboard. Press the
Note: The time is in the 24-hour format. For example, 5:30 P.M. appears as 17:30:00.
SupermicroA4SAN-H/-E/-L/-WOHS
BIOS Version
This feature displays the version of the BIOS ROM used in the system.
Build Date
This feature displays the date when the version of the BIOS ROM used in the system was built.
Memory Information
Total Memory
This feature displays the total size of memory available in the system.
4.3 Advanced Setup Configurations
Use the arrow keys to select the Advanced submenu and press
| Aptio Setup - AMI Main Advanced Event Logs Thermal & Fan Security Boot Save & Exit | |
| ACPI Settings Boot Feature CPU Configuration Chipset Configuration HDD Security Configuration PTN3460 Switch GPIO Expander Header HTTP Boot Configuration NCT6126D Super IO Configuration Network Configuration PCH-FW Configuration PCIe/PCI/PnP Configuration SATA And RST Configuration Serial Port Console Redirection Trusted Computing USB Configuration Intel(R) Ethernet Controller I226-IT - Intel(R) Ethernet Controller I226-IT - TLS Authenticate Configuration Driver Health COM Port Mode Configuration | System ACPI Parameters. |
| +: Select Screen ↑↓: Select Item Enter: Select +/-: Change Opt. F1: General Help F2: Previous Values F3: Optimized Defaults F4: Save & Exit F5: Keyword Search ESC: Exit | |
Figure 4-2. Advanced Setup Configurations

Warning! Take caution when changing the Advanced settings. An incorrect value, an improper DRAM frequency, or a wrong BIOS timing setting may cause the system to malfunction. When this occurs, revert the setting to the manufacture default settings.
ACPI Settings Menu
▶ ACPI Settings
ACPI Sleep State
Use this feature to select the ACPI Sleep State that the system will enter into when the suspend button is activated. The options are Suspend Disabled and S3 (Suspend to RAM).
WHEA Support
Select Enabled to support the Windows Hardware Error Architecture (WHEA) platform and provide a common infrastructure for the system to handle hardware errors within the Windows OS environment to reduce system crashes and to enhance system recovery and health monitoring. The options are Disabled and Enabled.
High Precision Event Timer
Select Enabled to activate the High Precision Event Timer (HPET) that produces periodic interrupts at a much higher frequency than a Real-time Clock (RTC) does in synchronizing multimedia streams, providing smooth playback and reducing the dependency on other timestamp calculation devices, such as an x86 RDTSC Instruction embedded in the CPU. The High Performance Event Timer is used to replace the 8254 Programmable Interval Timer. The options are Disabled and Enabled.
Native PCIe Enable
Enable this feature to grant control of PCI Express Native hot plug, PCI Express Power Management Events, and PCI Express Capability Structure Control. The options are Disabled and Enabled.
Native ASPM
Select Enabled for the operating system to control the ASPM, or Disabled for the BIOS to control the ASPM. The options are Auto, Enabled, and Disabled.
Smart Battery Support
Use this feature to enable or disable the BIOS Smart Battery polling. The options are Disabled and Enabled.
Wake System From S5
Use this feature to enable or disable the system wake on an alarm event. If enabled, the system will wake on the time specified. The options are Disabled and Enabled
Boot Feature Menu
▶ Boot Feature
Fast Boot
Enable this feature to reduce the time the computer takes to boot up. The computer will boot with a minimal set of required devices. This feature does not have an effect on BBS boot options in the Boot tab. The options are Disabled and Enabled.
Quiet Boot
Use this feature to select the screen between displaying the Power-on Self Test (POST) messages or the OEM logo upon bootup. Select Disabled to display the POST messages. Select Enabled to display the OEM logo instead of the normal POST messages. The options are Disabled and Enabled.
Note: BIOS POST messages are always displayed regardless of the setting of this feature.
Bootup NumLock State
Use this feature to set the Power-on state for the
Wait For "F1" If Error
Select Enabled to force the system to wait until the
Re-try Boot
If this feature is set to Enabled, the system BIOS will automatically reboot the system from an Extensible Firmware Interface (EFI) boot device after an initial boot failure. The options are Disabled and Enabled.
Power Configuration
Watch Dog Function
Select Enabled to allow the Watch Dog timer to reboot the system when it is inactive for more than five minutes. The options are Disabled and Enabled.
Restore on AC Power Loss
Use this feature to set the power state after a power outage. Select Stay Off for the system power to remain off after a power loss. Select Power On for the system power to be turned on after a power loss. Select Last State to allow the system to resume its last power state before a power loss. The options are Stay Off, Power On, and Last State.
Power Button Function
This feature controls how the system shuts down when the power button is pressed. Select 4 Seconds Override to power off the system after pressing and holding the power button for four seconds or longer. Select Instant Off to instantly power off the system as soon as you press the power button. The options are Instant Off and 4 Seconds Override.
DeepSx Power Policies
Use this feature to configure the Advanced Configuration and Power Interface (ACPI) settings for the system. Enable S4 to use Hibernation mode (Suspend to Disk) so that all data stored in the main memory can be saved in a non-volatile memory area such as in a hard drive and then power down the system. Enable S5 to power off the whole system except the power supply unit (PSU) and keep the power button alive so that you can wake up the system by using a USB keyboard or mouse. The options are Disabled, Enabled In S4-S5, and Enabled in S5.
CPU Configuration Menu
▶ CPU Configuration

Warning! Setting the wrong values for the features included in the following sections may cause the system to malfunction.
The following processor information is displayed.
- Processor Model
- CPU Signature
- Microcode Patch
- Max CPU Speed
- Min CPU Speed
- CPU Speed
• Number of Performance-cores
• Number of Efficient-cores
• Hyper Threading Technology - VMX
- SMX/TXT
-
64-bit
-
EIST Technology
- CPU C3 state
- CPU C6 state
CPU C7 state - CPU C8 state
- CPU C9 state
- CPU C10 state
• Performance L1 Data Cache
• Performance L1 Instruction Cache
• Performance L2 Cache
• Performance L3 Cache
• Efficient L1 Data Cache
• Efficient L1 Instruction Cache - Efficient L2 Cache
- Efficient L3 Cache
C6DRAM
Use this feature to enable or disable the moving of DRAM contents to PRM memory when the CPU is in the C6 state. The options are Disabled and Enabled.
Hardware Prefetcher (Available when "Workload Profile" is set to Disabled)
If this feature is set to Enabled, the hardware prefetcher will prefetch data from the main system memory to Level 2 cache to help expedite data transaction to enhance memory performance. The options are Enabled and Disabled.
Adjacent Cache Prefetch (Available when "Workload Profile" is set to Disabled)
Select Enabled for the CPU to prefetch both cache lines for 128 bytes as comprised. Select Disabled for the CPU to prefetch both cache lines for 64 bytes. The options are Enabled and Disabled.
Intel Virtualization Technology (Unavailable when "TXT Support" is set to Enabled and when "Workload Profile" is set to Virtualization)
Select Enabled to enable the Intel Vanderpool Technology for Virtualization platform support, which allows multiple operating systems to run simultaneously on the same computer to maximize system resources for performance enhancement. The options are Disabled and Enabled.
Note: Please reboot the system for any change of the setting to take effect.
Active Efficient-cores
This feature determines how many efficient cores will be activated for each processor package. When all is selected, all cores in the processor will be activated. The options are All, 3, 2, 1, and 0.
Boot Performance Mode
This feature allows you to select the performance state that the BIOS will set before the operating system handoff. The options are Max Non-Turbo Performance and Turbo Performance.
Intel ^® SpeedStep ^TM
Intel SpeedStep Technology allows the system to automatically adjust processor voltage and core frequency to reduce power consumption and heat dissipation. The options are Disabled and Enabled.
Intel® Speed Shift Technology
Use this feature to enable or disable Intel Speed Shift Technology support. When this feature is enabled, the Collaborative Processor Performance Control (CPPC) version 2 interface will be available to control CPU P-States. The options are Disabled and Enabled.
Turbo Mode (Available when "SpeedStep (P-States)" is set to Enabled and when "Workload Profile" is set to Disabled)
Select Enabled to allow the CPU to operate at the manufacturer- defined turbo speed by increasing CPU clock frequency. This feature is available when it is supported by the processors used in the system. The options are Disabled and Enabled.
Power Limit 1 Override
Select Enabled to support average power limit (PL1) override. The options are Disabled and Enabled.
Power Limit 1
Use this feature to configure the value for Power Limit 1. The value is in milliwatts, and the step size is 125 mW. Use the number keys on your keyboard to enter the value. Enter 0 to use the manufacture default setting. If the value is 0, the BIOS will set PL2 as 1.25* TDP.
Power Limit 1 Time Window
This feature determines how long the time window over which the TDP value is maintained. Use the number key on your keyboard to enter the value. The default setting is 8. This value can be between 0–128.
Power Limit 2 Override
Select Enabled to support rapid power limit (PL2) override. The options are Disabled and Enabled.
Power Limit 2
Use this feature to configure the value for Power Limit 2. The value is in milliwatts and the step size is 125 mW. Use the number keys on your keyboard to enter the value. Enter 0 to use the manufacture default setting. If the value is 0, the BIOS will set PL2 as 1.25* TDP.
C-States
Use this feature to enable the C-State of the CPU. The options are Disabled and Enabled.
Enhanced C-States
Use this feature to enable the enhanced C-State of the CPU. The options are Disabled and Enabled.
C-State Auto Demotion
Use this feature to prevent unnecessary excursions into the C-states to improve latency. The options are Disabled and C1.
C-State Auto Demotion
Use this feature to prevent unnecessary excursions into the C-states to improve latency. The options are Disabled and C1.
Package C-State Un-Demotion
Use this feature to enable or disable the Package C-State un-demotion. The options are Disabled and Enabled.
Package C-State Demotion
Use this feature to enable or disable the Package C-State demotion. The options are Disabled and Enabled.
C-State Pre-Wake
This feature allows you to enable or disable the C-State Pre-Wake. The options are Disabled and Enabled.
Package C-State Limit
Use this feature to set the Package C-State limit. The options are C0/C1, C2, C3, C6, C7, C7s, C8, C9, C10, Cpu Default, and Auto.
Monitor MWAIT
Select Enabled to support Monitor and Mwait, which are two instructions in Streaming SIMD Extension 3 (SSE3) to improve synchronization between multiple threads for CPU performance enhancement. The options are Disabled and Enabled.
Intel ^® TCC Mode
Use this feature to enable or disable the Intel Time Coordinated Computing (TCC) Mode. When enabled, this feature will modify the system settings to improve the real-time performance. The options are Disabled and Enabled.
Chipset Configuration Menu
▶ System Agent (SA) Configuration

Warning! Setting the wrong values in this section may cause system to malfunction.
System Agent (SA) Configuration
VT-D Supported
VT-d
Select Enabled to activate Intel Virtualization Technology support for Direct I/O VT-d by reporting the I/O device assignments to VMM through the DMAR ACPI Tables. This feature offers fully-protected I/O resource-sharing across the Intel platforms, providing the user with greater reliability, security and availability in networking and data-sharing. The options are Enabled and Disabled.
GNA Device (B0:D8:F0)
Use this feature to enable SA GNA device. The options are Enabled and Disabled.
Memory Configuration Menu
▶ Memory Configuration
This submenu allows you to configure the Integrated Memory Controller (iMC) settings.
Enforce DDR Memory Frequency POR
Select Enforce POR to enforce Plan of Record (POR) restrictions for DDR memory frequency and voltage programming. The options are Disabled and POR.
Maximum Memory Frequency
Use this feature to set the maximum memory frequency for onboard memory modules. The options are Auto, 1600, 1800, 2000, 2200, 2400, 2600, 2800, 3000, 3200, 3600, 4000, 4200, 4400, 4600, and 4800.
Max TOLUD
This feature sets the maximum TOLUD value, which specifies the "Top of Low Usable DRAM" memory space to be used by internal graphics devices, GTT Stolen Memory, and TSEG, respectively, if these devices are enabled. The options are Dynamic, 1 GB, 1.25 GB, 1.5 GB, 1.75 GB, 2 GB, 2.25 GB, 2.5 GB, 2.75 GB, 3 GB, 3.25 GB, and 3.5 GB.
Memory Scrambler
Use this feature to enable or disable memory scrambler support. The options are Disabled and Enabled.
Force ColdReset
Use this feature to enable or disable a cold boot during a MRC execution. The options are Enabled and Disabled.
Force Single Rank
Select enabled to use only Rank 0 in each DIMM. The options are Disabled and Enabled.
Memory Remap
Use this feature to enable or disable memory remap above 4 GB. The options are Enabled and Disabled.
MRC Fast Boot
Use this feature to enable or disable fast path through the memory reference code. The options are Disabled and Enabled.
In-Band ECC Support
Use this feature to enable or disable In-Band ECC. The options are Disabled and Enabled.
In-Band ECC Operation Mode (Available when In-Band ECC Support is Enabled)
Use this feature to select the In-Band ECC Operation Mode. The options are 0, 1, and 2.
Graphics Configuration Menu
▶ Graphics Configuration
This submenu allows you to configure the graphics configuration settings.
Graphics Configuration
IGFX GOP Version
Graphics Turbo IMON Current
Use this feature to set the graphics turbo IMON value. The default is 31.
Skip Scanning of External GFX Card
If this feature is enabled, the system will not scan for an external graphics card on PEG and PCIe slots. The options are Disabled and Enabled.
Primary Display
Use this feature to select the primary video display. The options are Auto, IGFX, and PCH PCI.
Internal Graphics
Select Auto to keep an internal graphics device installed on an expansion slot supported by the CPU to be automatically enabled. The options are Auto, Disabled, and Enabled.
GTT Size
Use this feature to set the memory size to be used by the graphics translation table (GTT). The options are 2MB, 4MB, and 8MB.
Aperture Size
Use this feature to set the Aperture size, which is the size of system memory reserved by the BIOS for graphics device use. The options are 128MB, 256MB, 512MB, 1024MB, and 2048MB.
DVMT Pre-Allocated
Dynamic Video Memory Technology (DVMT) allows dynamic allocation of system memory to be used for video devices to ensure best use of available system memory based on the DVMT 5.0 platform. The options are 0M, 32M, 64M, 96M, 128M, 160M, 4M, 8M, 12M, 16M, 20M, 24M, 28M, 32M/F7, 36M, 40M, 44M, 48M, 52M, 56M, and 60M.
PM Support
Enable this feature to activate Power Management BIOS support. The options are Enabled and Disabled.
PAVP Enable
Use this feature to enable or disable PAVP support. The options are Disabled and Enabled.
Cdynmax Clamping Enable
Enable this feature to activate Cdynmax Clamping. The options are Enabled and Disabled.
Graphics Clock Frequency
Use this feature to set the internal graphics clock frequency. The options are 192 Mhz, 307.2 Mhz, 556.8 Mhz, 652.8 MHZ, and Max CdClock freq based on Reference Clk.
DMI/OPI Configuration Menu
▶ DMI/OPI Configuration
This submenu allows you to configure the DMI/OPI configuration settings.
DMI Gen3 ASPM
Use this feature to set the Active State Power Management (ASPM) state on the System Agent (SA) side of the DMI Link. The options are Disabled, Auto, ASPM L0s, ASPM L1, and ASPM L0sL1.
GT - Power Management Control
RC6 (Render Standby)
Use this feature to enable render standby support. The options are Disabled and Enabled.
Maximum GT frequency
Use this feature to define the Maximum GT frequency. Choose between 33MHz (RPN) and 1200Mhz (RP0). Any value beyond this range will be clipped to its min/max supported by the CPU. The options are Default Max Frequency, 100Mhz, 150Mhz, 200Mhz, 250Mhz, 300Mhz, 350Mhz, 400Mhz, 450Mhz, 500Mhz, 550Mhz, 600Mhz, 650Mhz, 700Mhz, 750Mhz, 800Mhz, 850Mhz, 900Mhz, 950Mhz, 1000Mhz, 1050Mhz, 1100Mhz, 1150Mhz, and 1200Mhz.
Disable Turbo GT frequency
Use this feature to disable Turbo GT frequency. If set to Enabled, Turbo GT frequency becomes disabled. If set to Disabled, GT frequency limiters will be removed. The options are Enabled and Disabled.
PCH-IO Configuration
The following information is displayed.
- PCH SKU
- Stepping
▶ PCI Express Configuration
PCI Express Configuration
PCIe M.2-E1
PCIe M.2-E1 ASPM
Use this feature to activate the Active State Power Management (ASPM) level for a PCIe device. Select Auto for the system BIOS to automatically set the ASPM level based on the system configuration. Select Disabled to disable ASPM support. The options are Disabled, L1, and Auto.
Use this feature to set the PCI Express L1 Substates. The options are Disabled, L1.1, and L1.1 & L1.2.
PCIe M.2-E1 Speed
Use this feature to select the PCI Express port speed. The options are Auto, Gen1, Gen2, and Gen3.
PCIe M.2-E1 Peer Memory Write Enable
Use this feature to enable or disable Peer Memory Write. The options are Disabled and Enabled.
▶ PCIe M.2-M1
PCIe M.2-M1 ASPM
Use this feature to activate the Active State Power Management (ASPM) level for a PCIe device. Select Auto for the system BIOS to automatically set the ASPM level based on the system configuration. Select Disabled to disable ASPM support. The options are Disabled, L1, and Auto.
PCIe M.2-M1 L1 Substates
Use this feature to set the PCI Express L1 Substates. The options are Disabled, L1.1, and L1.1 & L1.2.
PCIe M.2-M1 Speed
Use this feature to select the PCI Express port speed. The options are Auto, Gen1, Gen2, and Gen3.
PCIe M.2-M1 Peer Memory Write Enable
Use this feature to enable or disable Peer Memory Write. The options are Disabled and Enabled.
PCIe M.2-B1
PCIe M.2-B1 ASPM
Use this feature to activate the Active State Power Management (ASPM) level for a PCIe device. Select Auto for the system BIOS to automatically set the ASPM level based on the system configuration. Select Disabled to disable ASPM support. The options are Disabled, L1, and Auto.
PCIe M.2-B1 L1 Substates
Use this feature to set the PCI Express L1 Substates. The options are Disabled, L1.1, and L1.1 & L1.2.
PCIe M.2-B1 Speed
Use this feature to select the PCI Express port speed. The options are Auto, Gen1, Gen2, and Gen3.
PCIe M.2-B1 Peer Memory Write Enable
Use this feature to enable or disable Peer Memory Write. The options are Disabled and Enabled.
HDD Security Configuration
The settings in this submenu are configurable if media drives are detected.
PTN3460 Switch
LVDS Panel Support
Use this feature to select the supported IGFX graphics device output to the LVDS panel. The options are Disabled and Non-EDID Panel.
Panel select (Available when LVDS Panel Support is set to Non-EDID Panel)
Use this feature to select the panel resolution. The options are Use EDID in SPI ROM, 800x600, 1024x768, 1280x1024, 1366x768, 800x480, 1900x1080, and OEM Define.
Single/Dual LVDS mode
Use this feature to select the LVDS bus mode. The options are Disabled, Single LVDS Bus mode, and Dual LVDS Bus mode.
Panel Channel Type
Use this feature to select the panel channel type. The options are Disabled, Odd Channel, Even Channel, and Both Channel.
Panel Color Depth
Use this feature to select the LFP panel color depth. The options are Disabled, VESA and JEIDA18 bpp, VESA 24 bpp, and JEIDA 24 bpp.
Backlight Brightness
Use this feature to select panel backlight brightness. The options are from 7% to 100%.
GPIO Expander Header
GPIO Expander Header Control
Use this feature enable or disable the General Purpose I/O expander header. The options are Disabled and Enabled.
Pin 1 (Available when "GPIO Expander Header Control" is set to Enabled)
Use this feature to set the output for Pin 1 to low or high. The options are Output Low, Output High, and Input.
Pin 2 (Available when "GPIO Expander Header Control" is set to Enabled)
Use this feature to set the output for Pin 2 to low or high. The options are Output Low, Output High, and Input.
Pin 3 (Available when "GPIO Expander Header Control" is set to Enabled)
Use this feature to set the output for Pin 3 to low or high. The options are Output Low, Output High, and Input.
Pin 4 (Available when "GPIO Expander Header Control" is set to Enabled)
Use this feature to set the output for Pin 4 to low or high. The options are Output Low, Output High, and Input.
Pin 5 (Available when "GPIO Expander Header Control" is set to Enabled)
Use this feature to set the output for Pin 5 to low or high. The options are Output Low, Output High, and Input.
Pin 6 (Available when "GPIO Expander Header Control" is set to Enabled)
Use this feature to set the output for Pin 6 to low or high. The options are Output Low, Output High, and Input.
Pin 7 (Available when "GPIO Expander Header Control" is set to Enabled)
Use this feature to set the output for Pin 7 to low or high. The options are Output Low, Output High, and Input.
Pin 8 (Available when "GPIO Expander Header Control" is set to Enabled)
Use this feature to set the output for Pin 8 to low or high. The options are Output Low, Output High, and Input.
HTTP Boot Configuration Menu
▶ HTTP Boot Configuration
HTTP Boot Policy
Use this feature to set the HTTP boot policy. The options are Apply to all LANs, Apply to each LAN, and Boot Priority #1 instantly.
HTTP Boot Checks Hostname
Enable this feature for HTTPS boot to check the hostname of the TLS certificates to see if it matches the host name provided by the remote server. The options are Enabled and Disabled (WARNING: Security Risk!).

Warning! Disabling "HTTP Boot Checks Hostname" is a violation of RFC 6125 and may expose you to Man-in-the-Middle Attacks. Supermicro is not responsible for any and all security risks incurred by you disabling this feature.
Priority of HTTP Boot
Instance of Priority 1: (Available when your motherboard supports this feature)
This feature sets the rank target port. The default setting is 1.
Select IPv4 or IPv6
This feature specifies which connection the target LAN port should boot from. The options are IPv4 and IPv6.
Boot Description
Use this feature to enter a boot description, which cannot be longer than 75 characters. Please be sure to enter a boot description; otherwise, the boot option for the URI cannot be created.
Boot URI
Enter a Boot Uniform Research Identifier (URI) with 128 characters or shorter. This Boot URI determines how IPv4 Boot Option and IPv6 Boot Option will be created. This feature is only supported on Dual or EFI Boot Mode.
Instance of Priority 2: (Available when "HTTP Boot Policy" is set to Apply to each LAN or Boot Priority #1 instantly)
This feature sets the rank target port. The default setting is 0.
NCT6126 Super IO Configuration
NCT6126D Super IO Configuration
The following information is displayed.
- Super IO Chip
Serial Port 1 Configuration Menu
▶ Serial Port 1 Configuration
Serial Port 1
Select Enabled to enable serial port 1. The options are Disabled and Enabled.
Device Settings (Available when "Serial Port 1" above is set to Enabled)
This feature shows the base I/O port address and the Interrupt Request address of serial port 1. The option isIO=3F8h; IRQ=4;.
Serial Port 2 Configuration Menu
▶ Serial Port 2 Configuration
Serial Port 2
Select Enabled to enable serial port 2. The options are Disabled and Enabled.
Device Settings (Available when "Serial Port 2" above is set to Enabled)
This feature shows the base I/O port address and the Interrupt Request address of serial port 2. The option is IO=2F8h; IRQ=3;.
Serial Port 3 Configuration Menu
▶ Serial Port 3 Configuration
Serial Port 3
Select Enabled to enable serial port 3. The options are Disabled and Enabled.
Device Settings (Available when "Serial Port 3" above is set to Enabled)
This feature shows the base I/O port address and the Interrupt Request address of serial port 2. The option is IO=3E8h; IRQ=6;.
Serial Port 4 Configuration Menu
▶ Serial Port 4 Configuration
Serial Port 4
Select Enabled to enable serial port 4. The options are Disabled and Enabled.
Device Settings (Available when "Serial Port 4" above is set to Enabled)
This feature shows the base I/O port address and the Interrupt Request address of serial port 2. The option is IO=2E8h; IRQ=7;.
Network Stack Configuration Menu
▶ Network Stack Configuration
Network Stack
Select Enabled to enable Preboot Execution Environment (PXE) or Unified Extensible Firmware Interface (UEFI) for network stack support. The options are Disabled and Enabled.
IPv4 PXE Support (Available when "Network Stack" is set to Enabled)
Select Enabled to enable IPv4 PXE boot support. If this feature is disabled, it will not create the IPv4 PXE boot option. The options are Disabled and Enabled.
IPv4 HTTP Support (Available when "Network Stack" is set to Enabled)
Select Enabled to enable IPv4 HTTP boot support. If this feature is disabled, it will not create the IPv4 HTTP boot option. The options are Disabled and Enabled.
IPv6 PXE Support (Available when "Network Stack" is set to Enabled)
Select Enabled to enable IPv6 PXE boot support. If this feature is disabled, it will not create the IPv6 PXE boot option. The options are Disabled and Enabled.
IPv6 HTTP Support (Available when "Network Stack" is set to Enabled)
Select Enabled to enable IPv6 HTTP boot support. If this feature is disabled, it will not create the IPv6 HTTP boot option. The options are Disabled and Enabled.
PXE Boot Wait Time (Available when "Network Stack" is set to Enabled)
Use this feature to set the wait time (in seconds) upon which the system BIOS will wait for you to press the
Media Detect Count (Available when "Network Stack" is set to Enabled)
Use this feature to set the wait time (in seconds) for the BIOS ROM to detect the presence of a LAN media either via the Internet connection or via a LAN port. Press the <+> or <-> key on your keyboard to change the value. The default setting is 1.
MAC:(MAC address)-IPv4 Network Configuration Menu
▶ MAC:(MAC address)-IPv4 Network Configuration
Configured
Enable this feature to configure network addresses for DHCP, local IP address, local netmask, local gateway, and local DNS server. The options are Disabled and Enabled.
Enable DHCP (Available when "Configured" is set to Enabled)
Select Enabled to support Dynamic Host Configuration Protocol (DHCP), which allows the BIOS to search for a DHCP server attached to the network and request the next available IP address for this computer. The options are Disabled and Enabled.
Local IP Address (Available when "Configured" is set to Enabled and "Enabled DHCP" is set to Disabled)
Use this feature to enter an IP address for the local machine.
Local NetMask (Available when "Configured" is set to Enabled and "Enabled DHCP" is set to Disabled)
Use this feature to set the netmask for the local machine.
Local Gateway (Available when "Configured" is set to Enabled and "Enabled DHCP" is set to Disabled)
Use this feature to set the gateway address for the local machine.
Local DNS Servers (Available when "Configured" is set to Enabled and "Enabled DHCP" is set to Disabled)
Use this feature to set the Domain Name System (DNS) server address for the local machine.
Save Changes and Exit
Press
MAC:(MAC address)-IPv6 Network Configuration Menu
▶ MAC:(MAC address)-IPv6 Network Configuration
▶ Enter Configuration Menu
The following information is displayed.
- Interface Name
- Interface Type
- MAC address
- Host address
- Route Table
- Gateway addresses
- DNS addresses
Interface ID
Use this feature to change/enter the 64-bit alternative interface ID for the device. The string format is colon separated. The default setting is the MAC address above.
DAD Transmit Count
Use this feature to set the number of consecutive neighbor solicitation messages have been sent while performing duplicate address detection on a tentative address. The default setting is 1.
Policy
Use this feature to select how the policy is to be configured. The options are automatic and manual.
▶ Advanced Configuration
Note: This submenu is available when "Policy" is set to manual.
New IPv6 address - Use this feature to enter the IPv6 address for the local machine.
New Gateway addresses - Use this feature to set the gateway address for the local machine.
New DNS addresses - Use this feature to set the DNS server address for the local machine.
Commit Changes and Exit - Press
Discard Changes and Exit - Press
Save Changes and Exit
Press
PCH-FW Configuration Menu
The following information is displayed.
• ME Firmware Version
• ME Firmware Mode
- ME Firmware SKU
ME FW Image Re-Flash
Use this feature to update the Management Engine firmware. The options are Disabled and Enabled.
TPM Device Selection
Use this feature to select dTPM or PTT for the TPM device. dTPM is discrete Trusted Platform Module and PTT is Platform Trusted Technology. The options are dTPM and PTT.
PCIe/PCI/PnP Configuration Menu
Option ROM execution
Video
Use this feature to select the execution of the video OpROM. The options are Do not launch and EFI.
PCI PERR/SERR Support
Use this feature to enable or disable the runtime event for PCI errors. The options are Disabled and Enabled.
Above 4G MMIO BIOS Assignment (Available if the system supports 64-bit PCI decoding)
Select Enabled to decode a PCI device that supports 64-bit in the space above 4G Address. The options are Enabled and Disabled.
Re-Size BAR Support
Use this feature to enable the Resizable BAR support. Resizable BAR is a PCIe interface technology that allows the CPU to access to the entire frame buffer. With this technology, your system will be able to handle multiple CPU to GPU transfers simultaneously rather than queuing, which can improve the frame rate performance. The options are Disabled and Enabled.
SR-IOV Support
Use this feature to enable or disable Single Root IO Virtualization Support. The options are Disabled and Enabled.
BME DMA Mitigation
Enable this feature to help block DMA attacks. The options are Disabled and Enabled.
NVMe Firmware Source
The feature determines which type of NVMe firmware should be used in your system. The options are Vendor Defined Firmware and AMI Native Support.
Consistent Device Name Support
This feature controls the device naming for network devices and slots. The options are Disabled and Enabled.
SMBus/I2C Selection
Use this feature to select the SMBus or I2C on the PCIe bus. The options are SMBus and I2C.
PCIe/PCI/PnP Configuration
PCI / PCIX / PCIe Slot 1 OPROM
Use this feature to enable or disable the PCI/PCIX/PCIe slot 1 OPROM option. The options are Disabled and EFI.
PCI / PCIX / PCIe Slot 2 OPROM
Use this feature to enable or disable the PCI/PCIX/PCIe slot 2 OPROM option. The options are Disabled and EFI.
PCI / PCIX / PCIe Slot 3 OPROM
Use this feature to enable or disable the PCI/PCIX/PCIe slot 3 OPROM option. The options are Disabled and EFI.
PCI / PCIX / PCIe Slot 4 OPROM
Use this feature to enable or disable the PCI/PCIX/PCIe slot 4 OPROM option. The options are Disabled and EFI.
PCI / PCIX / PCIe Slot 5 OPROM
Use this feature to enable or disable the PCI/PCIX/PCIe slot 5 OPROM option. The options are Disabled and EFI.
PCI / PCIX / PCIe Slot 6 OPROM
Use this feature to enable or disable the PCI/PCIX/PCIe slot 6 OPROM option. The options are Disabled and EFI.
PCI / PCIX / PCIe Slot 7 OPROM
Use this feature to enable or disable the PCI/PCIX/PCIe slot 7 OPROM option. The options are Disabled and EFI.
PCI / PCIX / PCIe Slot 8 OPROM
Use this feature to enable or disable the PCI/PCIX/PCIe slot 8 OPROM option. The options are Disabled and EFI.
PCI / PCIX / PCIe Slot 9 OPROM
Use this feature to enable or disable the PCI/PCIX/PCIe slot 9 OPROM option. The options are Disabled and EFI.
PCIe M.2-E1 OPROM
Use this feature to enable or disable the PCIe M.2-E1 OPROM option. The options are Disabled and EFI.
PCIe M.2-M1 OPROM
Use this feature to enable or disable the PCIe M.2-M1 OPROM option. The options are Disabled and EFI.
PCIe M.2-B1 OPROM
Use this feature to enable or disable the PCIe M.2- M1 OPROM option. The options are Disabled and EFI.
Onboard LAN1 Support
Use this feature to enable or disable LAN1. The options are Disabled and Enabled.
Onboard LAN2 Support
Use this feature to enable or disable LAN2. The options are Disabled and Enabled.
Onboard LAN1 Option ROM
Use this feature to select which firmware function to be loaded for LAN1 used for system boot. The options are Disabled and EFI.
Wake On LAN
Use this feature to enable or disable the wake on LAN function. The options are Disabled and Enabled.
SATA and RST Configuration Menu
SATA And RST Configuration
SATA Controller(s)
Use this feature to enable or disable the onboard SATA controller supported by the Intel PCH chip. The options are Enabled and Disabled.
Storage Option ROM/UEFI Driver
Select UEFI to load the EFI driver for system boot. Select Legacy to load a legacy driver for system boot. The options are Do not Launch and EFI.
Support Aggressive Link Power Management
When this feature is set to Enabled, the SATA AHCI controller manages the power usage of the SATA link. The controller will put the link in a low power mode during extended periods of I/O inactivity and will return the link to an active state when I/O activity resumes. The options are Disabled and Enabled.
M.2-M1 - M.2-B1
This feature displays the information detected on the installed SATA drive on the particular SATA port.
- Software Preserve Support
Hot Plug
Set this feature to Enable for hot plug support, which allows you to replace a SATA drive without shutting down the system. The options are Disabled and Enabled.
Spin Up Device
Set this feature to enable or disable the PCH to initialize the device. The options are Disabled and Enabled.
SATA Device Type
Use this feature to specify if the SATA port should be connected to a Solid State Drive or a Hard Disk Drive. The options are Hard Disk Drive and Solid State Drive.
Serial Port Console Redirection Menu
COM1
COM1 Console Redirection
Select Enabled to enable console redirection support for a serial port. The options are Enabled and Disabled.
▶ COM1 Console Redirection Settings
COM1 Console Redirection Settings
COM1 Console Redirection Settings (Available if "COM1 Console Redirection" is set to Enabled.)
Use this feature to specify how the host computer will exchange data with the client computer, which is the remote computer.
COM1 Terminal Type
This feature allows you to select the target terminal emulation type for Console Redirection. Select VT100 to use the ASCII Character set. Select VT100+ to add color and function key support. Select ANSI to use the Extended ASCII Character Set. Select VT-UTF8 to use UTF8 encoding to map Unicode characters into one or more bytes. The options are VT100, VT100+, VT-UTF8, and ANSI.
COM1 Bits Per Second
Use this feature to set the transmission speed for a serial port used in Console Redirection. Make sure that the same speed is used in the host computer and the client computer. A lower transmission speed may be required for long and busy lines. The options are 9600, 19200, 38400, 57600, and 115200 (bits per second).
COM1 Data Bits
Use this feature to set the data transmission size for Console Redirection. The options are 7 Bits and 8 Bits.
COM1 Parity
A parity bit can be sent along with regular data bits to detect data transmission errors. Select Even if the parity bit is set to 0, and the number of 1's in data bits is even. Select Odd if the parity bit is set to 0, and the number of 1's in data bits is odd. Select None if you do not want to send a parity bit with your data bits in transmission. Select Mark to add a mark as a parity bit to be sent along with the data bits. Select Space to add a Space as a parity bit to be sent with your data bits. The options are None, Even, Odd, Mark, and Space.
COM1 Stop Bits
A stop bit indicates the end of a serial data packet. Select 1 Stop Bit for standard serial data communication. Select 2 Stop Bits if slower devices are used. The options are 1 and 2.
COM1 Flow Control
Use this feature to set the flow control for Console Redirection to prevent data loss caused by buffer overflow. Send a "Stop" signal to stop sending data when the receiving buffer is full. Send a "Start" signal to start sending data when the receiving buffer is empty. The options are None and Hardware RTS/CTS.
COM1 VT-UTF8 Combo Key Support
Select Enabled to enable VT-UTF8 Combination Key support for ANSI/VT100 terminals. The options are Disabled and Enabled.
COM1 Recorder Mode
Select Enabled to capture the data displayed on a terminal and send it as text messages to a remote server. The options are Disabled and Enabled.
COM1 Resolution 100x31
Select Enabled for extended-terminal resolution support. The options are Disabled and Enabled.
COM1 Putty KeyPad
This feature selects the settings for Function Keys and KeyPad used for Putty, which is a terminal emulator designed for the Windows OS. The options are VT100, LINUX, XTERMR6, SC0, ESCN, and VT400.
COM1 Redirection After BIOS POST
Use this feature to enable or disable legacy console redirection after BIOS POST. When set to Bootloader, legacy console redirection is disabled before booting the OS. When set to Always Enable, legacy console redirection remains enabled when booting the OS. The options are Always Enable and BootLoader.
COM2
COM2 Console Redirection
Select Enabled to enable console redirection support for a serial port. The options are Enabled and Disabled.
▶ COM2 Console Redirection Settings
COM2 Console Redirection Settings
COM2 Console Redirection Settings (Available if "COM2 Console Redirection" is set to Enabled.)
Use this feature to specify how the host computer will exchange data with the client computer, which is the remote computer.
COM2 Terminal Type
This feature allows you to select the target terminal emulation type for Console Redirection. Select VT100 to use the ASCII Character set. Select VT100+ to add color and function key
support. Select ANSI to use the Extended ASCII Character Set. Select VT-UTF8 to use UTF8 encoding to map Unicode characters into one or more bytes. The options are VT100, VT100+, VT-UTF8, and ANSI.
COM2 Bits Per Second
Use this feature to set the transmission speed for a serial port used in Console Redirection. Make sure that the same speed is used in the host computer and the client computer. A lower transmission speed may be required for long and busy lines. The options are 9600, 19200, 38400, 57600, and 115200 (bits per second).
COM2 Data Bits
Use this feature to set the data transmission size for Console Redirection. The options are 7 Bits and 8 Bits.
COM2 Parity
A parity bit can be sent along with regular data bits to detect data transmission errors. Select Even if the parity bit is set to 0, and the number of 1's in data bits is even. Select Odd if the parity bit is set to 0, and the number of 1's in data bits is odd. Select None if you do not want to send a parity bit with your data bits in transmission. Select Mark to add a mark as a parity bit to be sent along with the data bits. Select Space to add a Space as a parity bit to be sent with your data bits. The options are None, Even, Odd, Mark, and Space.
COM2 Stop Bits
A stop bit indicates the end of a serial data packet. Select 1 Stop Bit for standard serial data communication. Select 2 Stop Bits if slower devices are used. The options are 1 and 2.
COM2 Flow Control
Use this feature to set the flow control for Console Redirection to prevent data loss caused by buffer overflow. Send a "Stop" signal to stop sending data when the receiving buffer is full. Send a "Start" signal to start sending data when the receiving buffer is empty. The options are None and Hardware RTS/CTS.
COM2 VT-UTF8 Combo Key Support
Select Enabled to enable VT-UTF8 Combination Key support for ANSI/VT100 terminals. The options are Disabled and Enabled.
COM2 Recorder Mode
Select Enabled to capture the data displayed on a terminal and send it as text messages to a remote server. The options are Disabled and Enabled.
COM2 Resolution 100x31
Select Enabled for extended-terminal resolution support. The options are Disabled and Enabled.
COM2 Putty KeyPad
This feature selects the settings for Function Keys and KeyPad used for Putty, which is a terminal emulator designed for the Windows OS. The options are VT100, LINUX, XTERMR6, SC0, ESCN, and VT400.
COM2 Redirection After BIOS POST
Use this feature to enable or disable legacy console redirection after BIOS POST. When set to Bootloader, legacy console redirection is disabled before booting the OS. When set to Always Enable, legacy console redirection remains enabled when booting the OS. The options are Always Enable and BootLoader.
COM3
COM3 Console Redirection
Select Enabled to enable console redirection support for a serial port. The options are Enabled and Disabled.
▶ Console Redirection Settings
COM3 Console Redirection Settings
COM3 Console Redirection Settings (Available if "COM1 Console Redirection" is set to Enabled.)
Use this feature to specify how the host computer will exchange data with the client computer, which is the remote computer.
COM3 Terminal Type
This feature allows you to select the target terminal emulation type for Console Redirection. Select VT100 to use the ASCII Character set. Select VT100+ to add color and function key support. Select ANSI to use the Extended ASCII Character Set. Select VT-UTF8 to use UTF8 encoding to map Unicode characters into one or more bytes. The options are VT100, VT100+, VT-UTF8, and ANSI.
COM3 Bits Per Second
Use this feature to set the transmission speed for a serial port used in Console Redirection. Make sure that the same speed is used in the host computer and the client computer. A lower transmission speed may be required for long and busy lines. The options are 9600, 19200, 38400, 57600, and 115200 (bits per second).
COM3 Data Bits
Use this feature to set the data transmission size for Console Redirection. The options are 7 Bits and 8 Bits.
COM3 Parity
A parity bit can be sent along with regular data bits to detect data transmission errors. Select Even if the parity bit is set to 0, and the number of 1's in data bits is even. Select Odd if the parity bit is set to 0, and the number of 1's in data bits is odd. Select None if you do not want to send a parity bit with your data bits in transmission. Select Mark to add a mark as a parity bit to be sent along with the data bits. Select Space to add a Space as a parity bit to be sent with your data bits. The options are None, Even, Odd, Mark, and Space.
COM3 Stop Bits
A stop bit indicates the end of a serial data packet. Select 1 Stop Bit for standard serial data communication. Select 2 Stop Bits if slower devices are used. The options are 1 and 2.
COM3 Flow Control
Use this feature to set the flow control for Console Redirection to prevent data loss caused by buffer overflow. Send a "Stop" signal to stop sending data when the receiving buffer is full. Send a "Start" signal to start sending data when the receiving buffer is empty. The options are None and Hardware RTS/CTS.
COM3 VT-UTF8 Combo Key Support
Select Enabled to enable VT-UTF8 Combination Key support for ANSI/VT100 terminals. The options are Disabled and Enabled.
COM3 Recorder Mode
Select Enabled to capture the data displayed on a terminal and send it as text messages to a remote server. The options are Disabled and Enabled.
COM3 Resolution 100x31
Select Enabled for extended-terminal resolution support. The options are Disabled and Enabled.
COM3 Putty KeyPad
This feature selects the settings for Function Keys and KeyPad used for Putty, which is a terminal emulator designed for the Windows OS. The options are VT100, LINUX, XTERMR6, SC0, ESCN, and VT400.
COM3 Redirection After BIOS POST
Use this feature to enable or disable legacy console redirection after BIOS POST. When set to Bootloader, legacy console redirection is disabled before booting the OS. When set to Always Enable, legacy console redirection remains enabled when booting the OS. The options are Always Enable and BootLoader.
COM4
COM4 Console Redirection
Select Enabled to enable console redirection support for a serial port. The options are Enabled and Disabled.
▶ COM4 Console Redirection Settings
COM4 Console Redirection Settings
COM4 Console Redirection Settings (Available if "COM1 Console Redirection" is set to Enabled.)
Use this feature to specify how the host computer will exchange data with the client computer, which is the remote computer.
COM4 Terminal Type
This feature allows you to select the target terminal emulation type for Console Redirection. Select VT100 to use the ASCII Character set. Select VT100+ to add color and function key support. Select ANSI to use the Extended ASCII Character Set. Select VT-UTF8 to use UTF8 encoding to map Unicode characters into one or more bytes. The options are VT100, VT100+, VT-UTF8, and ANSI.
COM4 Bits Per Second
Use this feature to set the transmission speed for a serial port used in Console Redirection. Make sure that the same speed is used in the host computer and the client computer. A lower transmission speed may be required for long and busy lines. The options are 9600, 19200, 38400, 57600, and 115200 (bits per second).
COM4 Data Bits
Use this feature to set the data transmission size for Console Redirection. The options are 7 Bits and 8 Bits.
COM4 Parity
A parity bit can be sent along with regular data bits to detect data transmission errors. Select Even if the parity bit is set to 0, and the number of 1's in data bits is even. Select Odd if the parity bit is set to 0, and the number of 1's in data bits is odd. Select None if you do not want to send a parity bit with your data bits in transmission. Select Mark to add a mark as a parity bit to be sent along with the data bits. Select Space to add a Space as a parity bit to be sent with your data bits. The options are None, Even, Odd, Mark, and Space.
COM4 Stop Bits
A stop bit indicates the end of a serial data packet. Select 1 Stop Bit for standard serial data communication. Select 2 Stop Bits if slower devices are used. The options are 1 and 2.
COM4 Flow Control
Use this feature to set the flow control for Console Redirection to prevent data loss caused by buffer overflow. Send a "Stop" signal to stop sending data when the receiving buffer is full. Send a "Start" signal to start sending data when the receiving buffer is empty. The options are None and Hardware RTS/CTS.
COM4 VT-UTF8 Combo Key Support
Select Enabled to enable VT-UTF8 Combination Key support for ANSI/VT100 terminals. The options are Disabled and Enabled.
COM4 Recorder Mode
Select Enabled to capture the data displayed on a terminal and send it as text messages to a remote server. The options are Disabled and Enabled.
COM4 Resolution 100x31
Select Enabled for extended-terminal resolution support. The options are Disabled and Enabled.
COM4 Putty KeyPad
This feature selects the settings for Function Keys and KeyPad used for Putty, which is a terminal emulator designed for the Windows OS. The options are VT100, LINUX, XTERMR6, SC0, ESCN, and VT400.
COM4 Redirection After BIOS POST
Use this feature to enable or disable legacy console redirection after BIOS POST. When set to Bootloader, legacy console redirection is disabled before booting the OS. When set to Always Enable, legacy console redirection remains enabled when booting the OS. The options are Always Enable and BootLoader.
Serial Port for Out-of-Band Management/Windows Emergency Management Services (EMS)
The feature allows you to configure Console Redirection settings to support Out-of-Band Serial Port management.
Console Redirection EMS
Select Enabled to use the SOL port for Console Redirection. The options are Disabled and Enabled.
▶ Console Redirection Settings
Note: This submenu is available when "Console Redirection EMS" is set to Enabled.
Out-of-Band Mgmt Port
The feature selects a serial port in a client server to be used by the Microsoft Windows Emergency Management Services (EMS) to communicate with a remote host server. The options are COM1 and SOL/COM2. Please note that the option of SOL/COM2 indicates a shared serial port. SOL is available with BMC support.
Terminal Type EMS
Use this feature to select the target terminal emulation type for Console Redirection. Select VT100 to use the ASCII character set. Select VT100+ to add color and function key support. Select ANSI to use the extended ASCII character set. Select VT-UTF8 to use UTF8 encoding to map Unicode characters into one or more bytes. The options are VT100, VT100+, VT-UTF8, and ANSI.
Bits Per Second EMS
This feature sets the transmission speed for a serial port used in Console Redirection. Make sure that the same speed is used in the host computer and the client computer. A lower transmission speed may be required for long and busy lines. The options are 9600, 19200, 57600, and 115200 (bits per second).
Flow Control EMS
Use this feature to set the flow control for Console Redirection to prevent data loss caused by buffer overflow. Send a "Stop" signal to stop sending data when the receiving buffer is full. Send a "Start" signal to start sending data when the receiving buffer is empty. The options are None, Hardware RTS/CTS, and Software Xon/Xoff.
The following information is displayed.
- Data Bits EMS
- Parity EMS
- Stop Bits EMS
Trusted Computing Menu
▶ Trusted Computing
Note: This submenu is available when a TPM device is installed and detected by the BIOS.
When a Trusted Platform Module (TPM) device is detected by your system, the following information is displayed.
- TPM 2.0 Device Found
- Firmware Version:
- Vendor:
Security Device Support
Select Enabled to enable BIOS support for onboard security devices, which are not displayed in the OS. If this feature is set to Enabled, TCG EFI protocol and INT1A interface will not be available. The options are Disabled and Enabled.
When "Security Device Support" is set to Enabled and the TPM 2.0 module is detected by the BIOS, the following information is displayed.
• Active PCR banks
• Available PCR banks
SHA256 PCR Bank (Available when "Security Device Support" is set to Enabled and the TPM 2.0 module is detected by the BIOS)
Select Enabled to enable SHA256 PCR Bank support to enhance system integrity and data security. The options are Disabled and Enabled.
SHA384 PCR Bank (Available when "Security Device Support" is set to Enabled and the TPM 2.0 module is detected by the BIOS)
Select Enabled to enable SHA384 PCR Bank support to enhance system integrity and data security. The options are Disabled and Enabled.
Pending Operation (Available when "Security Device Support" is set to Enabled and the TPM 2.0 module is detected by the BIOS)
Use this feature to schedule a TPM-related operation to be performed by a security (TPM) device at the next system boot to enhance system data integrity. The options are None and TPM Clear.
Note: Your system will reboot to carry out a pending TPM operation.
Platform Hierarchy (Available when "Security Device Support" is set to Enabled and the TPM 2.0 module is detected by the BIOS)
Select Enabled for TPM Platform Hierarchy support, which allows the manufacturer to utilize the cryptographic algorithm to define a constant key or a fixed set of keys to be used for initial system boot. These early boot codes are shipped with the platform and are included in the list of "public keys". During system boot, the platform firmware uses the trusted public keys to verify a digital signature in an attempt to manage and control the security of the platform firmware used in a host system via a TPM device. The options are Disabled and Enabled.
Storage Hierarchy (Available when "Security Device Support" is set to Enabled and the TPM 2.0 module is detected by the BIOS)
Select Enabled for TPM Storage Hierarchy support that is intended to be used for non-privacy-sensitive operations by a platform owner such as an IT professional or the end user. Storage Hierarchy has an owner policy and an authorization value, both of which can be set and are held constant (-rarely changed) through reboots. This hierarchy can be cleared or changed independently of the other hierarchies. The options are Disabled and Enabled.
Endorsement Hierarchy (Available when "Security Device Support" is set to Enabled and the TPM 2.0 module is detected by the BIOS)
Select Enabled for Endorsement Hierarchy support, which contains separate controls to address the user's privacy concerns because the primary keys in the hierarchy are certified by the TPM key or by a manufacturer with restrictions on how an authentic TPM device that is attached to an authentic platform can be accessed and used. A primary key can be encrypted and certified with a certificate created by using TPM2_ActivateCredential, which allows the user to independently enable "flag, policy, and authorization values" without involving other hierarchies. A user with privacy concerns can disable the endorsement hierarchy while still using the storage hierarchy for TPM applications, permitting the platform software to use the TPM. The options are Disabled and Enabled.
PH Randomization (Available when the TPM 2.0 module is detected by the BIOS)
Select Enabled for Platform Hierarchy (PH) Randomization support, which is used only during the platform developmental stage. This feature cannot be enabled in the production platforms. The options are Disabled and Enabled.
USB Configuration Menu
The following information is displayed.
- USB Module Version
- USB Controllers:
- USB Devices:
XHCI Hand-off
This is a work-around solution for operating systems that do not support Extensible Host Controller Interface (XHCI) hand-off. The XHCI ownership change should be claimed by the XHCI driver. The settings are Enabled and Disabled.
USB Mass Storage Driver Support
Select Enabled for USB mass storage device support. The options are Disabled and Enabled.
USB S5 Wakeup Support
Use this feature to enable or disable USB S5 Wakeup support. The options are Disabled and Enabled.
Intel(R) Ethernet Controller Menu
Intel(R) Ethernet Controller (I226-IT) - (XX:XX:XX:XX:XX:XX)
Notes:
- The Ethernet controller and MAC addresses shown above are based on you system features.
The following information is displayed.
- UEFI Driver
- Device Name
- Link Status
- MAC Address
- Link Auto-Negotiation Timeout
Intel(R) Ethernet Controller Menu
Intel(R) Ethernet Controller (I226-IT) - (XX:XX:XX:XX:XX:XX)
Notes:
- The Ethernet controller and MAC addresses shown above are based on you system features.
The following information is displayed.
- UEFI Driver
- Device Name
- Link Status
- MAC Address
- Link Auto-Negotiation Timeout
TLS Authenticate Configuration Menu
▶ TLS Authenticate Configuration
This submenu allows you to configure Transport Layer Security (TLS) settings.
▶ Server CA Configuration
This feature allows you to configure the client certificate that is to be used by the server.
▶Enroll Certification
This feature allows you to enroll the certificate in the system.
▶Enroll Certification Using File
This feature allows you to enroll the security certificate in the system by using a file.
Certification GUID
Press
▶ Commit Changes and Exit
Use this feature to save all changes and exit TLS settings.
▶ Discard Changes and Exit
Use this feature to discard all changes and exit TLS settings.
▶ Delete Certification
This feature is used to delete the certificate if a certificate has been enrolled in the system.
▶ Client Certification Configuration
Driver Health Menu
▶ Driver Health
This feature displays the health information of the drivers installed in your system, including LAN controllers, as detected by the BIOS. Select one and press
Note: This section is provided for reference only, for the driver health status will differ depending on the drivers installed in your system. It's also based on your system configuration and the environment that your system is operating in.
COM Port Mode Configuration Menu
COM1/COM2 Mode Selection
COM1 Mode
Use this feature to select the serial mode standard. The options are RS-232, RS-485/422 Full Duplex, RS-485 Half Duplex.
COM2 Mode
Use this feature to select the serial mode standard. The options are RS-232, RS-485/422 Full Duplex, RS-485 Half Duplex.
4.4 Event Logs
Use this menu to configure Event Logs settings.
Note: After you've made any changes in this section, please be sure to reboot the system for the changes to take effect.

Figure 4-3. Event Logs
▶ Change SMBIOS Event Log Settings
Note: Please reboot the system for the changes in this section to take effect.
Enabling/Disabling Options
SMBIOS Event Log
Select Enabled to enable System Management BIOS (SMBIOS) Event Logging during system boot. The options are Disabled and Enabled.
Erasing Settings
Erase Event Log (Available when "SMBIOS Event Log" is set to Enabled)
Select No to keep the event log without erasing it upon next system bootup. Select (Yes, Next reset) to erase the event log upon next system reboot. The options are No, (Yes, Next reset), and (Yes, Every reset).
When Log is Full (Available when "SMBIOS Event Log" is set to Enabled)
Select Erase Immediately to immediately erase all errors in the SMBIOS event log when the event log is full. Select Do Nothing for the system to do nothing when the SMBIOS event log is full. The options are Do Nothing and Erase Immediately.
SMBIOS Event Log Standard Settings
Log System Boot Event (Available when "SMBIOS Event Log" is set to Enabled)
Select Enabled to log system boot events. The options are Enabled and Disabled.
MECI (Available when "SMBIOS Event Log" is set to Enabled)
Enter the increment value for the multiple event counter. Enter a number between 1 to 255. The default setting is 1. (MECI is the abbreviation for Multiple Event Count Increment.)
METW (Available when "SMBIOS Event Log" is set to Enabled)
This feature is used to determine how long (in minutes) should the multiple event counter wait before generating a new event log. Enter a number between 0 to 99. The default value is 60. (METW is the abbreviation for Multiple Event Count Time Window.)
▶ View SMBIOS Event Log
This feature allows you to view the event in the system event log. Select this feature and press
4.5 Thermal & Fan
Use this menu to configure Fan settings.
| Aptio Setup - AMI | |
| Main Advanced Event Logs Thermal & Fan Security Boot Save & Exit | |
| Temperature Peripheral Temperature : +22 °C System Temperature : +29 °C CPU Temperature : +63 °C PCH Temperature : +58 °C Fan Speed FAN1 : 2188 RPM Voltage PVDD2 : +1.120 V P12V : +12.021 V P5V : +4.972 V P3V3SB : +3.344 V P3V_VBAT : +3.024 V P3V3 : +3.328 V PVCCORE : +0.760 V P1V8SB : +1.808 V P1V05_PROC : +1.024 V ▶ Fan Control | Fan Control |
| +: Select Screen ↑↓: Select Item Enter: Select +/-: Change Opt. F1: General Help F2: Previous Values F3: Optimized Defaults F4: Save & Exit F5: Keyword Search ESC: Exit | |
Figure 4-4. Thermal & Fan
The following information is displayed.
- Temperature
• Peripheral Temperature
• System Temperature - CPU Temperature
- PCH Temperature
- Fan Speed
• FAN1 -
Voltage
-
PVDD2
• P12V
• P5V - P3V3SB
- P3V_BAT
• P3V3 - PVCCCORE
- P1V8SB
- P1V05_PROC
▶ Fan Control
Fan Control Settings
Fan Speed Control Mode
Use this feature to select the fan speed control mode. The options are Quiet, Stable, Full Speed, and Customize.
FAN1 Control
FAN1 Reference sensor (Available when "Fan Speed Control Mode" is set to Customize)
This feature displays the FAN 1 reference sensor. The option is PECIO.
Temperature 1 (Available when "Fan Speed Control Mode" is set to Customize)
Use this feature to set the value for Temperature 1. The default selection is 20.
PWM1 (Available when "Fan Speed Control Mode" is set to Customize)
Use this feature to set the value for PWM1. The default selection is 20.
Temperature 2 (Available when "Fan Speed Control Mode" is set to Customize)
Use this feature to set the value for Temperature 2. The default selection is 100.
PWM2 (Available when "Fan Speed Control Mode" is set to Customize)
Use this feature to set the value for PWM2. The default selection is 100
The following information is displayed:
- Temperature 3
-
PWM3
-
Temperature 4
- PWM4
4.6 Security
This menu allows you to configure the following security settings for the system.
| Aptio Setup - AMI Main Advanced Event Logs Thermal & Fan Security Boot Save & Exit | |
| Password Description If the Administrator's / User's password is set, then this only limits access to Setup and is asked for when entering Setup. Please set Administrator's password first in order to set User's password, if clear Administrator's password, the User's password will be cleared as well. The password length must be in the following range: Minimum Length 3 Maximum Length 20 Administrator Password Hard Drive Security Frozen [Disabled] Password Check [Setup] Secure Boot | Set Administrator Password +: Select Screen ↑↓: Select Item Enter: Select +/-: Change Opt. F1: General Help F2: Previous Values F3: Optimized Defaults F4: Save & Exit F5: Keyword Search ESC: Exit |
Figure 4-5. Security
Disable Block Sid and Freeze Lock (Available when your storage devices support TCG)
Select Enabled to allow SID authentication to be performed in TCG storage devices. The options are Disabled and Enabled.
The following information is displayed.
- Administrator Password
- User Password
- Password Description
Administrator Password
This feature indicates if an administrator password has been installed. It also allows you to set the administrator password which is required to enter the BIOS Setup utility. The length of the password can be between three to 20 characters long.
User Password (Available when "Administrator Password" has been set)
This feature indicates if a user password has been installed. It also allows you to set the user password which is required to enter the BIOS Setup utility. The length of the password can be between three to 20 characters long.
Hard Drive Security Frozen
Select Enabled to freeze the Lock Security feature for HDD to protect key data in hard drives from being altered. The options are Disabled and Enabled.
Password Check
Select Setup for the system to check for a password at Setup. Select Always for the system to check for a password at bootup and upon entering the BIOS Setup utility. The options are Setup and Always.
Supermicro Security Erase Configuration Menu
▶ Supermicro Security Erase Configuration
Note: This submenu is available when any storage device is detected by the BIOS. For more information about this feature, please refer to our website.
This submenu allows you to configure the Supermicro-proprietary Security Erase settings. When this submenu is selected, the following information is displayed. Please note that the order of the following information may differ based on the storage devices being detected.
- HDD Name: This feature displays the name of the storage device that is detected by the BIOS.
- HDD Serial Number: This feature displays the serial number of the storage device that is detected by the BIOS.
- Security Mode: This feature displays the security mode of the storage device that is detected by the BIOS.
- Estimated Time: This feature displays the estimate time needed to perform the selected Security Erase features.
- HDD User Pwd Status: This feature indicates if a password has been set as a storage device user password which allows you to configure Supermicro Security Erase settings on the storage device by using this user password.
- TCG Device Type: This feature displays the TCG device type detected by the system.
- Admin Pwd Status: This feature indicates if a password has been set as a storage device administrator password which allows you to configure Supermicro Security Erase settings on the storage device by using this administrator password.
Security Function
Select Set Password to set a storage device password which allows you to configure the security settings of the storage device. Select Security Erase - Password to enter a storage device user password to allow you to erase the password and the contents previously stored in the storage device. Select Security Erase - Without Password to use the manufacturer default password "111111111" as the storage device user password and allow you to erase the contents of the storage device by using this default password. The options are Disabled, Set Password, Change Password, Clear Password, Security Erase - Password, Security Erase - PSID, and Security Erase - Without Password.
Notes:
- The option of Security Erase - PSID is based on the storage device support. PSID is the abbreviation for Physical Security Identification.
- The options of Change Password and Clear Password are available when "Password" below has been set.
- The option of Set Password is not available when "Password" below has been set.
Password
Use this feature to set the storage device user password, which allows you to configure the Supermicro Security Erase settings by using this user password.
New Password (Available when "Password" above has been set)
Use this feature to set the new user password for the storage device, which allows you to configure the Supermicro Security Erase settings by using this new user password.
Secure Boot Menu
▶ Secure Boot
Note: For detailed instructions on how to configure Security Boot settings, please refer to https://www.supermicro.com/support/manuals for the Security Boot Configuration User's Guide at.
The following information is displayed.
- System Mode
- Secure Boot
Secure Boot
Select Enabled to configure Secure Boot settings. The options are Disabled and Enabled.
Secure Boot Mode
Use this feature to select the desired secure boot mode for the system. The options are Standard and Custom.
▶ Enter Audit Mode
Note: This submenu is available when "Secure Boot Mode" is set to Custom.
Select Ok to enter the Audit Mode workflow. It will result in erasing of Platform Key (PK) variables and reset system to the Setup/Audit Mode.
▶ Key Management
Note: This submenu is available when "Secure Boot Mode" is set to Custom.
The following information is displayed.
- Vendor Keys
Provision Factory Defaults
Select Enabled to install provision factory default settings after a platform reset while the system is in the Setup Mode. The options are Disabled and Enabled.
Note: This submenu is available when any secure keys have been installed.
Select Yes to restore manufacturer default keys to ensure system security. The options are Yes and No. Selecting Yes will reset system to the Deployed mode.
▶ Reset To Setup Mode
Note: This submenu is available when any secure keys have been installed.
This feature resets the system to the Setup Mode. The options are Yes and No.
▶ Enroll Efi Image
This feature allows the Efi image to run in the secure boot mode, which will enroll the SHA256 Hash certificate of a PE image into the Authorized Signature Database (DB).
▶ Export Secure Boot Variables
Note: This submenu is available when any secure keys have been installed.
This feature exports the NVRAM contents of secure boot variables to a storage device. The options are Yes and No.
Secure Boot variable / Size / Keys / Key Source
▶ Platform Key (PK)
Use this feature to enter and configure a set of values to be used as platform firmware keys for the system. These values also indicate the sizes, key numbers, and the sources of the authorized signatures. Select Update to update the platform key.
▶Key Exchange Keys (KEK)
Use this feature to enter and configure a set of values to be used as Key Exchange Keys for the system. These values also indicate the sizes, key numbers, and the sources of the authorized signatures. Select Update to update your Key Exchange Keys. Select Append to append your Key Exchange Keys.
▶ Authorized Signatures (db)
Use this feature to enter and configure a set of values to be used as Authorized Signatures for the system. These values also indicate the sizes, key numbers, and the sources of the authorized signatures. Select Update to update your Authorized Signatures. Select Append to append your Authorized Signatures.
▶ Forbidden Signatures (dbx)
Use this feature to enter and configure a set of values to be used as Forbidden Signatures for the system. These values also indicate sizes, key numbers, and key sources of the forbidden signatures. Select Update to update your Forbidden Signatures. Select Append to append your Forbidden Signature.
▶ Authorized TimeStamps (dbt)
This feature allows you to set and save the timestamps for the Authorized Signatures, which will indicate the time when these signatures are entered into the system. These values also indicate sizes, keys, and key sources of the authorized timestamps. Select Update to update your Authorized TimeStamps. Select Append to append your Authorized TimeStamps.
▶OsRecovery Signatures (dbr)
This feature allows you to set and save the Authorized Signatures used for OS recovery. Select Update to update your OsRecovery Signatures. These values also indicate sizes, keys, and key sources of the OsRecovery Signatures. Select Append to append your OsRecovery Signatures.
4.7 Boot
Use this menu to configure Boot settings.
| Fixed Boot Order Priorities Boot Option #1 [UEFI Hard Disk] Boot Option #2 [UEFI CD/DVD] Boot Option #3 [UEFI USB Hard Disk] Boot Option #4 [UEFI USB CD/DVD] Boot Option #5 [UEFI USB Key] Boot Option #6 [UEFI USB Floppy] Boot Option #7 [UEFI USB Lan] Boot Option #8 [UEFI Network: (B2/DO/F0) UEFI PXE: IPv4 Intel(R) Ethernet Controller I226-IT(MAC: 0)] Boot Option #9 [UEFI AP:UEFI: Built-in EFI Shell] | Sets the system boot order |
| +: Select Screen ↑↓: Select Item Enter: Select +/-: Change Opt. F1: General Help F2: Previous Values F3: Optimized Defaults F4: Save & Exit F5: Keyword Search ESC: Exit | |
| ► Delete Boot Option ► UEFI NETWORK Drive BBS Priorities ► UEFI Application Boot Priorities |
Figure 4-6. Boot
FIXED BOOT ORDER Priorities
This feature prioritizes the order of a bootable device from which the system will boot. Press
- Boot Option #1 – Boot Option #9
▶ Delete Boot Option
This feature allows you to select a boot device to delete from the boot priority list.
Delete Boot Option
Use this feature to remove an EFI boot option from the boot priority list.
▶UEFI NETWORK Drive BBS Priorities
This feature allows you to set the system boot order of detected devices.
▶UEFI Application Boot Priorities
This feature allows you to set the system boot order of detected devices.
4.8 Save & Exit
Select Save & Exit from the BIOS Setup screen to configure the settings below.
| Aptio Setup - AMI Main Advanced Event Logs Thermal & Fan Security Boot Save & Exit | |
| Save Options Discard Changes And Exit Save Changes And Reset Save Changes Discard Changes Default Options Load Optimized Defaults Save As User Defaults Restore User Defaults Boot Override (B2/DO/F0) UEFI PXE: IPv4 Intel(R) Ethernet Controller I226-IT (B3/DO/F0) UEFI PXE: IPv4 Intel(R) Ethernet Controller I226-IT (B2/DO/F0) UEFI PXE: IPv6 Intel(R) Ethernet Controller I226-IT (B3/DO/F0) UEFI PXE: IPv6 Intel(R) Ethernet Controller I226-IT UEFI: Built-in EFI Shell Launch EFI Shell from filesystem device | Exit system setup without saving any changes. +: Select Screen ↑↓: Select Item Enter: Select +/-: Change Opt. F1: General Help F2: Previous Values F3: Optimized Defaults F4: Save & Exit F5: Keyword Search ESC: Exit |
Figure 4-7. Save & Exit
Save Options
Discard Changes and Exit
Use this feature to exit from the BIOS Setup utility without making any permanent changes to the system configuration and reboot the computer.
Save Changes and Reset
When you have completed the system configuration changes, use this feature to exit the BIOS Setup utility and reboot the computer for the new system configuration parameters to become effective.
Save Changes
When you have completed the system configuration changes, use this feature to save all changes you've made. This will not reset (reboot) the system.
Discard Changes
Select this feature and press
Default Options
Restore Optimized Defaults
Select this feature and press
Note: Please reboot the system for the changes to take effect to ensure that your system has the optimized default settings.
Save As User Defaults
Select this feature and press
Select this feature and press
Boot Override
This feature allows you to override the Boot priorities sequence in the Boot menu, and immediately boot the system with a device specified here instead of the one specified in the boot list. This is a one-time override.
Appendix A:
BIOS Codes
For information about BIOS codes for the A4SAN-H/-E/-L/-WOHS motherboard, refer to the following content.
BIOS Codes
For information about BIOS codes for the A4SAN-H/-E/-L/-WOHS motherboard, refer to the following content.
BIOS Error POST (Beep) Codes
During the Power-On Self-Test (POST) routines, which are performed each time the system is powered on, errors may occur.
Non-fatal errors are those which, in most cases, allow the system to continue the boot up process. The error messages normally appear on the screen.
Fatal errors are those which will not allow the system to continue the boot up process. If a fatal error occurs, you should consult with your system manufacturer for possible repairs.
These fatal errors are usually communicated through a series of audible beeps that can be heard on an external buzzer connected to JD1. The table shown below lists some common errors and their corresponding beep codes encountered by users.
| BIOS Beep (POST) Codes | ||
| Beep Code Error | Message Description | |
| 1 beep Refresh | Circuits have been reset (Ready to power up) | |
| 5 short, 1 long Memory error No memory detected in system | ||
| 5 short, 2 long | Display memory read/write error | Video adapter missing or with faulty memory |
| 1 long continuous | System OH System overheat condition | |
Additional BIOS POST Codes
The AMI BIOS supplies additional checkpoint codes, which are documented online at https://www.supermicro.com/support/manuals ("AMI BIOS POST Codes User's Guide").
For information on AMI updates, refer to https://www.ami.com/products.
Appendix B:
Software
After the A4SAN- H/- E/- L/- WOHS motherboard has been installed, you can install the Operating System (OS), configure RAID settings and install the drivers.
B.1 Microsoft Windows OS Installation
If you will be using RAID, you must configure RAID settings before installing the Windows OS and the RAID driver. Refer to the RAID Configuration User Guides posted on our website at https://www.supermicro.com/support/manuals.
Installing the OS
-
Create a method to access the Microsoft Windows installation ISO file. That might be a Media drive, using a USB flash or media drive, or the BMC KVM console.
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Retrieve the proper drivers. Go to the Supermicro web page for your motherboard and click on "Download the Latest Drivers and Utilities," select the proper driver, and copy it to a USB flash drive.
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Boot from a bootable device with Windows OS installation. You can see a bootable device list by pressing
during the system bootup.

Figure B-1. Select Boot Device
- During Windows Setup, continue to the dialog box where you select the drives on which to install Windows. If the disk you want to use is not listed, click on the "Load driver" link at the bottom left corner.

Figure B-2. Load Driver Link
To load the driver, browse the USB flash drive for the proper driver files.
- Once all devices are specified, continue with the installation.
- After the Windows OS installation has completed, the system will automatically reboot multiple times for system updates.
The Supermicro website that contains drivers and utilities for your system is at https://www.supermicro.com/wdl. Some of these must be installed, such as the chipset driver.
After accessing the website, go into the CDR_Images (in the parent directory of the above link) and locate the ISO file for your motherboard. Download this file to a USB flash or media drive. You may also use a utility to extract the ISO file if preferred.
Another option is to go to the Supermicro website at https://www.supermicro.com. Find the product page for your motherboard and download the latest drivers and utilities.
Insert the flash drive or disk, and the screenshot shown below should appear.

Figure B-3. Driver Installation Screenshot
Note: Click the icons showing a hand writing on paper to view the readme files for each item. Click the computer icons to the right of these items to install each item (from top to bottom) one at a time. After installing each item, you must reboot the system before moving on to the next item on the list. The bottom icon with a CD on it allows you to view the entire contents.
Appendix C:
Standardized Warning Statements
The following statements are industry standard warnings, provided to warn the user of situations which have the potential for bodily injury. Should you have questions or experience difficulty, contact Supermicro's Technical Support department for assistance. Only certified technicians should attempt to install or configure components.
Read this section in its entirety before installing or configuring components in the Supermicro A4SAN-H/-E/-L/-WOHS motherboard.
These warnings may also be found on our website at https://www.supermicro.com/about/policies/safety_information.cfm.
Battery Handling

CAUTION There is risk of explosion if the battery is replaced by an incorrect type.
Replace the battery only with the same or equivalent type recommended by the manufacturer. Dispose of used batteries according to the manufacturer's instructions.
電池の取り扱い
Warning! Ultimate disposal of this product should be handled according to all national laws and regulations.
製品の廃棄