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USER MANUAL PRIME H310M-C/CSM ASUS
Copyright © 2018 ASUSTeK COMPUTER INC. All Rights Reserved.
No part of this manual, including the products and software described in it, may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language in any form or by any means, except documentation kept by the purchaser for backup purposes, without the express written permission of ASUSTeK COMPUTER INC. ("ASUS").
Product warranty or service will not be extended if: (1) the product is repaired, modified or altered, unless such repair, modification of alteration is authorized in writing by ASUS; or (2) the serial number of the product is defaced or missing.
ASUS PROVIDES THIS MANUAL "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OR CONDITIONS OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL ASUS, ITS DIRECTORS, OFFICERS, EMPLOYEES OR AGENTS BE LIABLE FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES (INCLUDING DAMAGES FOR LOSS OF PROFITS, LOSS OF BUSINESS, LOSS OF USE OR DATA, INTERRUPTION OF BUSINESS AND THE LIKE), EVEN IF ASUS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES ARISING FROM ANY DEFECT OR ERROR IN THIS MANUAL OR PRODUCT.
SPECIFICATIONS AND INFORMATION CONTAINED IN THIS MANUAL ARE FURNISHED FOR INFORMATIONAL USE ONLY, AND ARE SUBJECT TO CHANGE AT ANY TIME WITHOUT NOTICE, AND SHOULD NOT BE CONSTRUED AS A COMMITMENT BY ASUS. ASUS ASSUMES NO RESPONSIBILITY OR LIABILITY FOR ANY ERRORS OR INACCURACIES THAT MAY APPEAR IN THIS MANUAL, INCLUDING THE PRODUCTS AND SOFTWARE DESCRIBED IN IT.
Products and corporate names appearing in this manual may or may not be registered trademarks or copyrights of their respective companies, and are used only for identification or explanation and to the owners' benefit, without intent to infringe.
Offer to Provide Source Code of Certain Software
This product contains copyrighted software that is licensed under the General Public License ("GPL"), under the Lesser General Public License Version ("LGPL") and/or other Free Open Source Software Licenses. Such software in this product is distributed without any warranty to the extent permitted by the applicable law. Copies of these licenses are included in this product.
Where the applicable license entitles you to the source code of such software and/or other additional data, you may obtain it for a period of three years after our last shipment of the product, either
(1) for free by downloading it from http://support.asus.com/download
or
(2) for the cost of reproduction and shipment, which is dependent on the preferred carrier and the location where you want to have it shipped to, by sending a request to:
ASUSTeK Computer Inc.
Legal Compliance Dept.
15 Li Te Rd.,
Beitou, Taipei 112
Taiwan
In your request please provide the name, model number and version, as stated in the About Box of the product for which you wish to obtain the corresponding source code and your contact details so that we can coordinate the terms and cost of shipment with you.
The source code will be distributed WITHOUT ANY WARRANTY and licensed under the same license as the corresponding binary/object code.
This offer is valid to anyone in receipt of this information.
ASUSTeK is eager to duly provide complete source code as required under various Free Open Source Software licenses. If however you encounter any problems in obtaining the full corresponding source code we would be much obliged if you give us a notification to the email address gpl@asus.com, stating the product and describing the problem (please DO NOT send large attachments such as source code archives, etc. to this email address).
Contents
Safety information iv
About this guide iv
Package contents ...... vi
PRIME H310M-C specifications summary...... vi
Chapter 1: Product introduction
Motherboard overview 1-1
Central Processing Unit (CPU)....1-8
System memory 1-9
Chapter 2: BIOS information
BIOS setup program....2-1
BIOS menu screen....2-2
Event Log 2-3
Exit menu....2-4
Appendix
Notices....A-1
ASUS contact information....A-5
Safety information
Electrical safety
- To prevent electrical shock hazard, disconnect the power cable from the electrical outlet before relocating the system.
- When adding or removing devices to or from the system, ensure that the power cables for the devices are unplugged before the signal cables are connected. If possible, disconnect all power cables from the existing system before you add a device.
- Before connecting or removing signal cables from the motherboard, ensure that all power cables are unplugged.
- Seek professional assistance before using an adapter or extension cord. These devices could interrupt the grounding circuit.
- Ensure that your power supply is set to the correct voltage in your area. If you are not sure about the voltage of the electrical outlet you are using, contact your local power company.
- If the power supply is broken, do not try to fix it by yourself. Contact a qualified service technician or your retailer.
Operation safety
- Before installing the motherboard and adding components, carefully read all the manuals that came with the package.
- Before using the product, ensure all cables are correctly connected and the power cables are not damaged. If you detect any damage, contact your dealer immediately.
- To avoid short circuits, keep paper clips, screws, and staples away from connectors, slots, sockets and circuitry.
- Avoid dust, humidity, and temperature extremes. Do not place the product in any area where it may be exposed to moisture.
- Place the product on a stable surface.
- If you encounter technical problems with the product, contact a qualified service technician or your retailer.
About this guide
This user guide contains the information you need when installing and configuring the motherboard.
How this guide is organized
This guide contains the following parts:
• Chapter 1: Product introduction
This chapter describes the features of the motherboard and the new technology it supports. It includes descriptions of the switches, jumpers, and connectors on the motherboard.
• Chapter 2: BIOS information
This chapter discusses changing system settings through the BIOS Setup menus. Detailed descriptions for the BIOS parameters are also provided.
Where to find more information
Refer to the following sources for additional information and for product and software updates.
1. ASUS websites
The ASUS website provides updated information on ASUS hardware and software products. Refer to the ASUS contact information.
2. Optional documentation
Your product package may include optional documentation, such as warranty flyers, that may have been added by your dealer. These documents are not part of the standard package.
Conventions used in this guide
To ensure that you perform certain tasks properly, take note of the following symbols used throughout this manual.

DANGER/WARNING: Information to prevent injury to yourself when completing a task.
CAUTION: Information to prevent damage to the components when completing a task.
IMPORTANT: Instructions that you MUST follow to complete a task.
NOTE: Tips and additional information to help you complete a task.
Typography
Bold text Indicates a menu or an item to select.
Italics Used to emphasize a word or a phrase.
<Key> Keys enclosed in the less-than and greater-than sign means that you must press the enclosed key. Example: <Enter> means that you must press the Enter or Return key.
Package contents
Check your motherboard package for the following items.
| Motherboard | ASUS PRIME H310M-C motherboard |
| Cables | 2 x Serial ATA 6.0 Gb/s cables |
| Accessories | 1 x ASUS I/O Shield1 x M.2 Screw |
| Application DVD Support DVD | |
| Documentation User Guide | |

If any of the above items is damaged or missing, contact your retailer.
PRIME H310M-C specifications summary
| Chipset Intel | ^ H310 Chipset |
| Memory | 2 x DIMMs, max. 32GB, DDR4 2666 / 2400 / 2133 MHz, non-ECC, un-buffered memoryDual-channel memory architectureSupports Intel ^ Extreme Memory Profile (XMP)* The maximum memory frequency supported varies by processor.** Hyper DIMM support is subject to the physical characteristics of individual CPUs. Please refer to Memory QVL for details.*** DDR4 2666MHz and higher memory modules will run at max. 2666MHz on Intel ^ 8th Gen. 6-core or higher processors.**** Refer to www.asus.com for the Memory QVL (Qualified Vendors List). |
| Expansion slots | 1 x PCI Express 3.0 / 2.0 x16 slot (at x16 mode)2 x PCI Express 2.0 x1 slots1 x PCI slot |
| CPU | LGA1151 socket for Intel ^ 8th Generation Core ^TM i7 / i5 / i3, Pentium ^ , and Celeron ^ processorsSupports Intel ^ 14nm CPUSupports Intel ^ Turbo Boost Technology 2.0** The Intel ^ Turbo Boost Technology 2.0 support depends on the CPU types.** Refer towww.asus.comfor Intel ^ CPU support list. |
| Graphics | Integrated graphics processor - Intel ^ HD Graphics supportMulti-VGA out support: DVI-D / D-Sub ports- Supports DVI-D with maximum resolution of 1920 x 1200 @60Hz- Supports D-Sub with maximum resolution of 1920 x 1200 @60HzSupports Intel ^ InTru ^TM 3D/Quick Sync Video/Clear Video HD Technology/Insider ^TM Maximum shared memory of 1024MB |
| Storage | Intel ^ H310 Chipset:- 4 x SATA 6.0 Gb/s ports (gray)- 1 x M.2 socket 3 with M key, type 2260/2280 storage devices support (both SATA* & PCIe x2 mode)* When a SATA mode M.2 device is installed, the M.2 Socket shares bandwidth with the SATA6G_2 port. |
(continued on the next page)
PRIME H310M-C specifications summary
| LAN Realtek | ® 8111H Gigabit LAN supports LANGuard |
| USB | Intel® H310 Chipset:- 4 x USB 3.1 Gen 1 (up to 5Gbps) ports (2 ports at mid-board; 2 ports at back panel, blue, Type A)- 6 x USB 2.0/1.1 ports (2 ports at mid-board; 4 ports at back panel) |
| Audio | Realtek® ALC887 8-channel High Definition Audio CODEC*- Supports jack-detection and front panel jack-retasking* Choose the chassis with HD audio module in the front panel to support an 8-channel audio output. |
| ASUS special features | Bespoke Motherboard Design & Business Motherboard Focused Features :- ASUS Self- Recovering BIOS: Automatically recovers BIOS update once crash happens- ASUS Event Log: Records activities of system and provides information in BIOS- ASUS Commercial BIOS kit: Speeds up BIOS update solution by partial BIOS design- Anti-Moisture: Against moisture and corrosion — prolonging the life of your motherboard- 24/7 Reliability: Tested under temperature up to 45°C and humidity up to 80% to ensure handle diverse environment- Overcurrent Protection: Short circuit prevention, protects your systemEasy Assembly Design :- Fixed-position&Color-coded Connectors: Enable easy identification and cable-matching, speeding up the production line- Box Headers: USB headers are box style, enabling fast connector installation and preventing pin damageDIGI+VRM |
| Rear panel I/O ports | 1 x PS/2 keyboard port (purple)1 x PS/2 mouse port (green)2 x USB 3.1 Gen 1 (up to 5Gbps) ports (Type-A, blue)4 x USB 2.0/1.1 ports1 x D-Sub port1 x DVI-D port1 x COM port1 x LAN (RJ-45) port3 x Audio jacks support 8-channel audio output |
| Internal connectors | 1 x USB 3.1 Gen 1 (up to 5Gbps) connector supports additional 2 USB 3.1 Gen 1 ports (19-pin)1 x USB 2.0/1.1 connector supports additional 2 USB 2.0/1.1 ports1 x M.2 socket 3 with M key, type 2260/2280 storage devices supports (SATA* & PCIe x2 mode)4 x SATA 6.0Gb/s connectors1 x 4-pin CPU Fan connector1 x 4-pin Chassis Fan connector for PWM and DC mode1 x COM connector1 x Chassis intrusion connector1 x Front panel audio connector (AAFP) |
(continued on the next page)
PRIME H310M-C specifications summary
| Internal connectors | 1 x Speaker connector1 x 24-pin EATX Power connector1 x 4-pin ATX 12V Power connector1 x System panel connector1 x Clear CMOS jumper (2-pin)1 x 14-1 pin TPM connector1 x Paralle connector1 x LPC debug header* When a SATA mode M.2 device is installed, the M.2 Socket shares bandwidth with the SATA6G_2 port. |
| BIOS features | 128 Mb Flash ROM, UEFI AMI BIOS, PnP, SM BIOS 3.1, ACPI 6.1, Multi-language BIOS, ASUS EZ Flash 3, CrashFree BIOS 3, Last Modified log, and ASUS DRAM SPD (Serial Presence Detect) memory information |
| Manageability | WOL by PME, PXE |
| Support DVD | DriversASUS Commercial BIOS KitASUS Watchdog TimerAnti-virus software (OEM version) |
| OS support | Windows® 10 (64-bit) |
| Form factor | Micro ATX form factor: 9.6 in. x 7.6 in. (24.4 cm x 19.3 cm) |

Specifications are subject to change without notice.
Product introduction
Motherboard overview

- Unplug the power cord from the wall socket before touching any component.
- Before handling components, use a grounded wrist strap or touch a safely grounded object or a metal object, such as the power supply case, to avoid damaging them due to static electricity.
- Before you install or remove any component, ensure that the ATX power supply is switched off or the power cord is detached from the power supply. Failure to do so may cause severe damage to the motherboard, peripherals, or components.
- Unplug the power cord before installing or removing the motherboard. Failure to do so can cause you physical injury and damage to motherboard components.

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Place this side towards the rear of the chassis 19.3cm(7.6in) KBMS ATX12V CPU_FAN USB5-8 VGA LAN_US1G1_04 CHA_FAN AUDIO PCIEX16 PRIME H310M-C ASUS DDR4 DIMM_B1 (64dL, 288-pin module) DDR4 DIMM_A1 (76tol,288-pin module) SALN200 UO1G1_12 24.4cm(9.6in) Super I/O PCIEX1_1 BATTERY PCIEX1_2 ASM 1083 Intel® H310 PCI AAPP COM2 LPT LPT CEBJ5 US5014 OPC1-1 - SMC3 - OTG3 - 300A 17 12 415 8 9
Scan the QR code to get the detailed pin definitions.

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ATX power connectors (24-pin EATXPWR, 4-pin ATX12V)
Correctly orient the ATX power supply plugs into these connectors and push down firmly until the connectors completely fit.

- For a fully configured system, we recommend that you use a power supply unit (PSU) that complies with ATX 12V Specification 2.0 (or later version) and provides a minimum power of 350 W. Ensure this PSU type has 24-pin and 4-pin power plugs.
- We recommend that you use a PSU with higher power output when configuring a system with more power-consuming devices or when you intend to install additional devices. The system may become unstable or may not boot up if the power is inadequate.
- DO NOT forget to connect the 4-pin ATX +12V power plug. Otherwise, the system will not boot up.
- If you are uncertain about the minimum power supply requirement for your system, refer to the Recommended Power Supply Wattage Calculator at http://support.asus.com/PowerSupplyCalculator/PSCalculator.aspx?SLanguage=en-us for details.

CPU and chassis fan connectors (4-pin CPU\_FAN, 4-pin CHA\_FAN)
Connect the fan cables to the fan connectors on the motherboard, ensuring that the black wire of each cable matches the ground pin of the connector.

Do not forget to connect the fan cables to the fan connectors. Insufficient air flow inside the system may damage the motherboard components. These are not jumpers! Do not place jumper caps on the fan connectors! The CPU_FAN connector supports a CPU fan of maximum 0.5A (6 W) fan power.

Intel ^® LGA1151 CPU socket
Install Intel ^® LGA1151 CPU into this surface mount LGA1151 socket, which is designed for 8th Generation Intel ^® Core ^TM i7 / i5 / i3, Pentium ^® , and Celeron ^® processors.

For more details, refer to Central Processing Unit (CPU).

M.2 socket 3
This socket allows you to install M.2 (NGFF) SSD modules.

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M.2(SOCKET3)
- This M.2 socket supports M Key and 2260/2280 storage devices.
- When a device in SATA mode is installed on the M.2 socket, the SATA_2 port cannot be used.
- Due to the Chipset limitation, when an M.2 device is installed in PCIe mode, the socket is set to PCIe 2.0.

DDR4 DIMM slots
Install 2 GB, 4 GB, 8 GB, and 16 GB unbuffered non-ECC DDR4 DIMMs into these DIMM sockets.

For more details, refer to System memory.

USB 3.1 Gen 1 (up to 5Gb/s) connector (20-1 pin U31G1\_12)
Connect a USB 3.1 Gen 1 module to this connector for additional USB 3.1 Gen 1 front or rear panel ports. This connector complies with USB 3.1 Gen 1 specifications and provides faster data transfer speeds of up to 5 Gbps, faster charging time for USB-chargeable devices, optimized power efficiency, and backward compatibility with USB 2.0.

Clear RTC RAM (2-pin CLRTC)
This header allows you to clear the CMOS RTC RAM data of the system setup information such as date, time, and system passwords.

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CLRTC +3V_BAT GND PIN 1To erase the RTC RAM:
- Turn OFF the computer and unplug the power cord.
- Use a metal object such as a screwdriver to short the two pins.
- Plug the power cord and turn ON the computer.
- Hold down the
key during the boot process and enter BIOS setup to re-enter data.

If the steps above do not help, remove the onboard battery and short the two pins again to clear the CMOS RTC RAM data. After clearing the CMOS, reinstall the battery.

Intel® H310 Serial ATA 6.0Gb/s connectors (7-pin SATA6G\_1\~4)
These connectors connect to Serial ATA 6.0 Gb/s hard disk drives via Serial ATA 6.0 Gb/s signal cables.

Speaker connector (4-pin SPEAKER)
The 4-pin connector is for the chassis-mounted system warning speaker. The speaker allows you to hear system beeps and warnings.

System panel connector (10-1 pin F\_PANEL)
This connector supports several chassis-mounted functions.

USB 2.0 connector (10-1 pin USB914)
Connect a USB module cable to this connector, then install the module to a slot opening at the back of the system chassis. This USB connector complies with USB 2.0 specifications and supports up to 480Mbps connection speed.
12
TPM connector (14-1 pin TPM)
This connector supports a Trusted Platform Module (TPM) system, which can securely store keys, digital certificates, passwords, and data. A TPM system also helps enhance network security, protects digital identities, and ensures platform integrity.
13
LPC Debug header
This header allows connection to a LPC debug card.

- Scan the QR code to view the meaning of each debug code.
- Debug codes are only available for ASUS LPC debug card.
- Contact your region sales representative for LPC debug header ordering.

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LPT connector (26-1 pin LPT)
The LPT (Line Printing Terminal) connector supports devices such as a printer. LPT standardizes as IEEE 1284, which is the parallel port interface on IBM PC-compatible computers.
15
Chassis intrusion header (4-1 pin CHASSIS)
This header is for a chassis-mounted intrusion detection sensor or switch. Connect one end of the chassis intrusion sensor or switch cable to this connector. The chassis intrusion sensor or switch sends a high-level signal to this connector when a chassis component is removed or replaced. The signal is then generated as a chassis intrusion event.
By default, the pin labeled "Chassis Signal" and "Ground" are shorted with a jumper cap. Remove the jumper caps only when you intend to use the chassis intrusion detection feature.
16
Serial port connector (10-1 pin COM)
This connector is for a serial (COM) port. Connect the serial port module cable to this connector, then install the module to a slot opening at the back of the system chassis.
17
Front panel audio connector (10-1 pin AAFP)
This connector is for a chassis-mounted front panel audio I/O module that supports either HD Audio or legacy AC'97 audio standard. Connect one end of the front panel audio I/O module cable to this connector.

- We recommend that you connect a high-definition front panel audio module to this connector to avail of the motherboard's high-definition audio capability.
- If you want to connect a high-definition front panel audio module to this connector, set the Front Panel Type item in the BIOS setup to [HD Audio]. If you want to connect an AC'97 front panel audio module to this connector, set the item to [AC97]. By default, this connector is set to [HD Audio].

PCI slot
The PCI slot supports cards such as a LAN card, SCSI card, USB card, and other cards that comply with PCI specifications.

PCI Express 2.0 x1 slots
This motherboard has two PCI Express 2.0 x1 slots that support PCI Express x1 network cards, SCSI cards, and other cards that comply with the PCI Express specifications.

PCI Express 3.0/2.0 x16 slot
This motherboard supports one PCI Express 3.0/2.0 x16 graphic card that complies with the PCI Express specifications.
Rear panel connectors

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125 11 3 4 10 9 6 7 8-
PS/2 Mouse port (green). This port is for a PS/2 mouse.
-
USB 2.0 ports. These 4-pin Universal Serial Bus (USB) ports are for USB 2.0/1.1 devices. From the top to the bottom, the port numbering is Port7, Port8, Port5, and Port6.
-
Video Graphics Adapter (VGA) port. This 15-pin port is for a VGA monitor or other VGA-compatible devices.
-
Serial port connector (COM). This port connects a modem, or other devices that conform with serial specification.
-
LAN (RJ-45) port. This port allows Gigabit connection to a Local Area Network (LAN) through a network hub.
LAN port LED indications
| Activity/Link LED Speed LED | |||
| Status Description Status Description | |||
| Off No link OFF | 10Mbps connection | ||
| Orange Linked | ORANGE 100Mbps connection | ||
| Orange (Blinking) | Data activity GREEN 1Gbps connection | ||
| Orange (Blinking then steady) | Ready to wake up from S5 mode | ||

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Activity Link LED Speed LED LAN port-
Line In port (light blue). This port connects to the tape, CD, DVD player, or other audio sources.
-
Line Out port (lime). This port connects to a headphone or a speaker. In the 4.1, 5.1 and 7.1-channel configurations, the function of this port becomes Front Speaker Out.
-
Microphone port (pink). This port connects to a microphone.

Refer to the audio configuration table for the function of the audio ports in 2.1, 4.1, 5.1, or 7.1-channel configuration.
Audio 2.1, 4.1, 5.1 or 7.1-channel configuration
| Port | Headset 2.1-channel | 4.1-channel 5.1-channel | 7.1-channel | |
| Light Blue (Rear panel) | Line In Rear | Speaker Out | Rear Speaker Out | Rear Speaker Out |
| Lime (Rear panel) Line Out | Front Speaker Out | Out | Front Speaker Out | Front Speaker Out |
| Pink (Rear panel) Mic In | Mic In Bass/Center | Bass/Center | ||
| Lime (Front panel) --- | Side Speaker Out |

To configure a 7.1-channel audio output:
Use a chassis with HD audio module in the front panel to support a 7.1-channel audio output.
9 USB 3.1 Gen 1 ports. These 9-pin Universal Serial Bus (USB) ports are for USB 3.1 Gen 1 devices.

- USB 3.1 Gen 1 devices can only be used for data storage.
- We strongly recommend that you connect USB 3.1 Gen 1 devices to USB 3.1 Gen 1 ports for faster and better performance from your USB 3.1 Gen 1 devices.
-
Due to the design of the Intel ^ 300 series chipset, all USB devices connected to the USB 2.0 and USB 3.1 Gen 1 ports are controlled by the xHCI controller. Some legacy USB devices must update their firmware for better compatibility.
-
DVI-D port. This port is for any DVI-D compatible device.

DVI-D can not be converted to output from RGB Signal to CRT and is not compatible with DVI-I.
- PS/2 Keyboard port (purple). This port is for a PS/2 keyboard.
Central Processing Unit (CPU)
This motherboard comes with a surface mount LGA1151 socket designed for the 8th Generation Intel® Core™ i7 / Core™ i5 / Core™ i3, Pentium®, and Celeron® processors.

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Unplug all power cables before installing the CPU.

- Ensure that you install the correct CPU designed for the LGA1151 socket only. DO NOT install a CPU designed for LGA1150, LGA1155 and LGA1156 sockets on the LGA1151 socket.
- Upon purchase of the motherboard, ensure that the PnP cap is on the socket and the socket contacts are not bent. Contact your retailer immediately if the PnP cap is missing, or if you see any damage to the PnP cap/socket contacts/motherboard components.
- Keep the cap after installing the motherboard. ASUS will process Return Merchandise Authorization (RMA) requests only if the motherboard comes with the cap on the LGA1151 socket.
- The product warranty does not cover damage to the socket contacts resulting from incorrect CPU installation/removal, or misplacement/loss/incorrect removal of the PnP cap.
Installing the CPU

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Diagram showing a device component with labeled parts A, B, C and numbered arrows indicating motion or assembly steps.
Apply the Thermal Interface Material to the CPU heatsink and CPU before you install the heatsink and fan if necessary.
System memory
Overview
This motherboard comes with two Double Data Rate 4 (DDR4) Dual Inline Memory Module (DIMM) sockets. The figure illustrates the location of the DDR4 DIMM sockets:

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DIMM_B1* DIMM_A1*
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Channel Sockets Channel A DIMM_A1* Channel B DIMM_B1*
- You may install varying memory sizes in Channel A and Channel B. The system maps the total size of the lower-sized channel for the dual-channel configuration. Any excess memory from the higher-sized channel is then mapped for single-channel operation.
- Always install DIMMs with the same CAS latency. For optimal compatibility, we recommend that you install memory modules of the same version or date code (D/C) from the same vendor. Check with the retailer to get the correct memory modules.
- DDR4 2666MHz and higher memory modules will run at max. 2666MHz on Intel ^® 8th Generation 6-core or higher processors.
- Memory modules with memory frequency higher than 2133 MHz and its corresponding timing or the loaded X.M.P. Profile is not the JEDEC memory standard. The stability and compatibility of these memory modules depend on the CPU's capabilities and other installed devices.

- The default memory operation frequency is dependent on its Serial Presence Detect (SPD), which is the standard way of accessing information from a memory module. Under the default state, some memory modules for overclocking may operate at a lower frequency than the vendor-marked value.
- For system stability, use a more efficient memory cooling system to support a full memory load (2 DIMMs).
• Refer to www.asus.com for the latest Memory QVL (Qualified Vendors List).
Recommended memory configuration

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DIMM_A1* DIMM_B1* DIMM_A1*Installing a DIMM
1

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A A BTo remove a DIMM

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B ABIOS information

Scan the QR code to view the BIOS update guide.

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The system will automatically active ASUS Self-Recovering BIOS after reboot from the BIOS update failure.
ASUS Self-Recovering BIOS
ASUS-exclusive BIOS protection technology automatically recovers the system's BIOS with a verified backup in the event of an update failure, preventing the need to replace or reinstall your hardware.
- Ensures safe BIOS updates
- Requires no additional software
- Provides automatic update failure detection and recovery
- Reduces maintenance frequency and costs
BIOS setup program
Use the BIOS Setup program to update the BIOS or configure its parameters. The BIOS screens include navigation keys and brief online help to guide you in using the BIOS Setup program.
Entering BIOS Setup at startup
To enter BIOS Setup at startup:
Press
Entering BIOS Setup after POST
To enter BIOS Setup after POST:
- Press
+ + simultaneously. - Press the reset button on the system chassis.
- Press the power button to turn the system off then back on. Do this option only if you failed to enter BIOS Setup using the first two options.

Using the power button, reset button, or the keys to force reset from a running operating system can cause damage to your data or system. We recommend you always shut down the system properly from the operating system.

- The BIOS setup screens shown in this section are for reference purposes only, and may not exactly match what you see on your screen.
- Visit the ASUS website at www.asus.com to download the latest BIOS file for this motherboard.
- If the system becomes unstable after changing any BIOS setting, load the default settings to ensure system compatibility and stability. Select the Load Optimized Defaults item under the Exit menu or press hotkey F5.
- If the system fails to boot after changing any BIOS setting, try to clear the CMOS and reset the motherboard to the default value. See section Motherboard overview for information on how to erase the RTC RAM.
BIOS menu screen

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Menu bar Aptio Setup Utility - Copyright (C) 2017 American Megatrends, Inc. Main Ai Tweaker Advanced Monitor Boot Tool Exit BIOS Information BIOS Version 0203 x64 Build Date and Time 12/20/2017 15:26:26 ME Firmware Version 12.0.0.1020 PCH Stepping A1 Processor Information Brand String Genuine Intel(R) CPU Speed 2900MHz Total Memory 4096MB Memory Frequency 2133MHz System Language System Date [English] System Time [Mon 01/09/2017] Access Level [21:25:25] Security Administrator Sub-menu item Menu items Configuration fields General Help Choose the default language +: Select Screen +: Select Item Enter: Select +/-: Change Opt. F1: General Help F2: Previous Values F5: Optimized Defaults F10: Save & Exit ESC: Exit Version 2.19.1269 Copyright (C) 2017 American Megatrends, Inc.Event Log
You can access Event Log from the Tool menu.
| Main | Aptio Setup Utility - Copyright (C) 2017 American Megatrends, Inc. | |||||
| Ai Tweaker | Advanced | Monitor | Boot | Tool | Exit | |
| ASUS EZ Flash 3 Utility ▶ASUS SPD Information ▶Event Log | Show Event Logs in setup. | |||||
| →:Select Screen ↑↓: Select Item Enter: Select +/-: Change Opt. F1: General Help F2: Previous Values F5: Optimized Defaults F10: Save & Exit ESC: Exit | ||||||
A built-in event log enables easier troubleshooting by capturing useful system information, including:
| Event Category Description Event Log | ||
| BIOS Updates | Update status, latest version and update time | BIOS updated from xxxx to xxxxBIOS update successful |
| AC Power loss Abnormal power loss events | AC Power Loss4S Forced Shutdown | |
| RTC reset Real-time-clock (RTC) reset time RTC time reset has occurred | ||
| Chassis instrusion | Record of when the chassis has been opened | A chassis intrusion has occurred |
| Hardware changes | Modifications to the CPU, memory or HDDs | New CPU InstalledHDD has been changed!Memory has been changed! |
| BIOS Updates | USB current*, CPU temperature**, and CPU voltage events** | USB Over Current occurredCPU Over Heating Error!CPU Over Voltage Error! |
* Record of when USB Over Current occurs
** Record of when CPU temperature rises above 75°C
***Record of when CPU Voltage reaches below 0 mV or above 1550mV
Exit menu
The Exit menu items allow you to load the optimal default values for the BIOS items, and save or discard your changes to the BIOS items.
| Aptio Setup Utility - Copyright (C) 2017 American Megatrends, Inc. | |
| Main Ai Tweaker Advanced Monitor Boot Tool Exit | |
| Load Optimized Defaults Save Changes & Reset Discard Changes & Exit Launch EFI Shell from USB drives | Exit system setup without saving any changes. |
| →←:Select Screen ↑↓: Select Item Enter: Select +/-: Change Opt. F1: General Help F2: Previous Values F5: Optimized Defaults F10: Save & Exit ESC: Exit | |
Load Optimized Defaults
This option allows you to load the default values for each of the parameters on the Setup menus. When you select this option or if you press
Save Changes & Reset
Once you are finished making your selections, choose this option from the Exit menu to ensure the values you selected are saved. When you select this option or if you press
Discard Changes & Exit
This option allows you to exit the Setup program without saving your changes. When you select this option or if you press
Launch EFI Shell from USB drives
This option allows you to attempt to launch the EFI Shell application (shellx64.efi) from one of the available USB devices.
Appendix
Notices
Federal Communications Commission Statement
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:
• This device may not cause harmful interference.
- This device must accept any interference received including interference that may cause undesired operation.
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with manufacturer's instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
• Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver.
- Consult the dealer or an experienced radio/TV technician for help.
- Connect the equipment to an outlet on a circuit different from that to which the receiver is connected.

The use of shielded cables for connection of the monitor to the graphics card is required to assure compliance with FCC regulations. Changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user's authority to operate this equipment.
Compliance Statement of Innovation, Science and Economic Development Canada (ISED)
This device complies with Innovation, Science and Economic Development Canada licence exempt RSS standard(s). Operation is subject to the following two conditions: (1) this device may not cause interference, and (2) this device must accept any interference, including interference that may cause undesired operation of the device.
CAN ICES-3(B)/NMB-3(B)
KC: Korea Warning Statement
B급 기기 (가정용 방송통신기자재)
Complying with the REACH (Registration, Evaluation, Authorisation, and Restriction of Chemicals) regulatory framework, we published the chemical substances in our products at ASUS REACH website at http://csr.asus.com/english/REACH.htm.

DO NOT throw the motherboard in municipal waste. This product has been designed to enable proper reuse of parts and recycling. This symbol of the crossed out wheeled bin indicates that the product (electrical and electronic equipment) should not be placed in municipal waste. Check local regulations for disposal of electronic products.

DO NOT throw the mercury-containing button cell battery in municipal waste. This symbol of the crossed out wheeled bin indicates that the battery should not be placed in municipal waste.
ASUS Recycling/Takeback Services
ASUS recycling and takeback programs come from our commitment to the highest standards for protecting our environment. We believe in providing solutions for you to be able to responsibly recycle our products, batteries, other components as well as the packaging materials. Please go to http://csr.asus.com/english/Takeback.htm for detailed recycling information in different regions.
Regional notice for California

WARNING
Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Google™ License Terms
Copyright© 2018 Google Inc. All Rights Reserved.
Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at:
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and limitations under the License.
English ASUSTeK Computer Inc. hereby declares that this device is in compliance with the essential requirements and other relevant provisions of related Directives. Full text of EU declaration of conformity is available at: www.asus.com/support
www.asus.com/support
Hrvatski ASUSTeK Computer Inc. ovim izjavljuje da je ovaj uređaj sukladan s bitnim zahtjevima i ostalim odgovarajućim odredbama vezanih direktiva. Cijeli tekst EU izjave o sukladnosti dostupan je na: www.asus.com/support
Address 4F, No. 150, Li-Te Road, Peitou, Taipei 112, Taiwan
Telephone +886-2-2894-3447
Fax +886-2-2890-7798
Web site www.asus.com
Technical Support
Telephone +86-21-38429911
Fax +86-21-5866-8722, ext. 9101#
Online support http://qr.asus.com/techserv
ASUS COMPUTER INTERNATIONAL (America)
Address 800 Corporate Way, Fremont, CA 94539, USA
Telephone +1-510-739-3777
Fax +1-510-608-4555
Web site http://www.asus.com/us/
Technical Support
Support fax +1-812-284-0883
Telephone +1-812-282-2787
Online support http://qr.asus.com/techserv
ASUS COMPUTER GmbH (Germany and Austria)
Address Harkort Str. 21-23, 40880 Ratingen, Germany
Fax +49-2102-959931
Web site http://www.asus.com/de
Online contact http://eu-rma.asus.com/sales
Technical Support
Telephone +49-2102-5789555
Support Fax +49-2102-959911
Online support http://qr.asus.com/techserv
FCC COMPLIANCE INFROMATION
Per FCC Part 2 Section 2.1077

Responsible Party: Asus Computer International
Address: 800 Corporate Way, Fremont, CA 94539.
Phone/Fax No: (510)739-3777/(510)608-4555
hereby declares that the product
Product Name : Motherboard
Model Number : PRIME H310M-C
compliance statement:
This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
Ver. 180125