ASROCK B660M-ITX/eDP - Motherboard

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USER MANUAL B660M-ITX/eDP ASROCK

Copyright©2022 ASRock INC. All rights reserved.

No part of this documentation may be reproduced, transcribed, transmitted, or translated in any language, in any form or by any means, except duplication of documentation by the purchaser for backup purpose, without written consent of ASRock Inc.

Products and corporate names appearing in this documentation 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.

Disclaimer:

Specifications and information contained in this documentation are furnished for informational use only and subject to change without notice, and should not be constructed as a commitment by ASRock. ASRock assumes no responsibility for any errors or omissions that may appear in this documentation.

With respect to the contents of this documentation, ASRock does not provide warranty of any kind, either expressed or implied, including but not limited to the implied warranties or conditions of merchantability or fitness for a particular purpose.

In no event shall ASRock, 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 data, interruption of business and the like), even if ASRock has been advised of the possibility of such damages arising from any defect or error in the documentation or product.

ASROCK B660M-ITX/eDP - Disclaimer: - 1

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.

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 the 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.
  • Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
  • Consult the dealer or an experienced radio/TV technician for help.

ASROCK B660M-ITX/eDP - Disclaimer: - 2

The terms HDMI ^® and HDMI High-Definition Multimedia Interface, and the HDMI logo are trademarks or registered trademarks of HDMI Licensing LLC in the United States and other countries.

ASROCK B660M-ITX/eDP - Disclaimer: - 3

INTEL END USER SOFTWARE LICENSE AGREEMENT IMPORTANT - READ BEFORE COPYING, INSTALLING OR USING.

LICENSE. Licensee has a license under Intel's copyrights to reproduce Intel's Software only in its unmodified and binary form, (with the accompanying documentation, the "Software") for Licensee's personal use only, and not commercial use, in connection with Intel-based products for which the Software has been provided, subject to the following conditions:

(a) Licensee may not disclose, distribute or transfer any part of the Software, and You agree to prevent unauthorized copying of the Software.
(b) Licensee may not reverse engineer, decompile, or disassemble the Software.
(c) Licensee may not sublicense the Software.
(d) The Software may contain the software and other intellectual property of third party suppliers, some of which may be identified in, and licensed in accordance with, an enclosed license.txt file or other text or file.
(e) Intel has no obligation to provide any support, technical assistance or updates for the Software.

OWNERSHIP OF SOFTWARE AND COPYRIGHTS. Title to all copies of the Software remains with Intel or its licensors or suppliers. The Software is copyrighted and protected by the laws of the United States and other countries, and international treaty provisions. Licensee may not remove any copyright notices from the Software. Except as otherwise expressly provided above, Intel grants no express or implied right under Intel patents, copyrights, trademarks, or other intellectual property rights. Transfer of the license terminates Licensee's right to use the Software.

DISCLAIMER OF WARRANTY. The Software is provided “AS IS” without warranty of any kind, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION, WARRANTIES OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE.

LIMITATION OF LIABILITY. NEITHER INTEL NOR ITS LICENSORS OR SUPPLIERS WILL BE LIABLE FOR ANY LOSS OF PROFITS, LOSS OF USE, INTERRUPTION OF BUSINESS, OR INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES OF ANY KIND WHETHER UNDER THIS AGREEMENT OR OTHERWISE, EVEN IF INTEL HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.

LICENSE TO USE COMMENTS AND SUGGESTIONS. This Agreement does NOT obligate Licensee to provide Intel with comments or suggestions regarding the Software. However, if Licensee provides Intel with comments or suggestions for the modification, correction, improvement or enhancement of (a) the Software or (b) Intel products or processes that work with the Software, Licensee grants to Intel a non-exclusive, worldwide, perpetual, irrevocable, transferable, royalty-free license, with the right to sublicense, under

Licensee's intellectual property rights, to incorporate or otherwise utilize those comments and suggestions.

TERMINATION OF THIS LICENSE. Intel or the sublicensor may terminate this license at any time if Licensee is in breach of any of its terms or conditions. Upon termination, Licensee will immediately destroy or return to Intel all copies of the Software.

THIRD PARTY BENEFICIARY. Intel is an intended beneficiary of the End User License Agreement and has the right to enforce all of its terms.

U.S. GOVERNMENT RESTRICTED RIGHTS. The Software is a commercial item (as defined in 48 C.F.R. 2.101) consisting of commercial computer software and commercial computer software documentation (as those terms are used in 48 C.F.R. 12.212), consistent with 48 C.F.R. 12.212 and 48 C.F.R 227.7202-1 through 227.7202-4. You will not provide the Software to the U.S. Government. Contractor or Manufacturer is Intel Corporation, 2200 Mission College Blvd., Santa Clara, CA 95054.

EXPORT LAWS. Licensee agrees that neither Licensee nor Licensee's subsidiaries will export/re-export the Software, directly or indirectly, to any country for which the U.S. Department of Commerce or any other agency or department of the U.S. Government or the foreign government from where it is shipping requires an export license, or other governmental approval, without first obtaining any such required license or approval. In the event the Software is exported from the U.S.A. or re-exported from a foreign destination by Licensee, Licensee will ensure that the distribution and export/re-export or import of the Software complies with all laws, regulations, orders, or other restrictions of the U.S. Export Administration Regulations and the appropriate foreign government.

APPLICABLE LAWS. This Agreement and any dispute arising out of or relating to it will be governed by the laws of the U.S.A. and Delaware, without regard to conflict of laws principles. The Parties to this Agreement exclude the application of the United Nations Convention on Contracts for the International Sale of Goods (1980). The state and federal courts sitting in Delaware, U.S.A. will have exclusive jurisdiction over any dispute arising out of or relating to this Agreement. The Parties consent to personal jurisdiction and venue in those courts. A Party that obtains a judgment against the other Party in the courts identified in this section may enforce that judgment in any court that has jurisdiction over the Parties.

Licensee's specific rights may vary from country to country.

CALIFORNIA, USA ONLY

The Lithium battery adopted on this motherboard contains Perchlorate, a toxic substance controlled in Perchlorate Best Management Practices (BMP) regulations passed by the California Legislature. When you discard the Lithium battery in California, USA, please follow the related regulations in advance.

"Perchlorate Material-special handling may apply, see www.dtsc.ca.gov/hazardouswaste/perchlorate"

AUSTRALIA ONLY

Our goods come with guarantees that cannot be excluded under the Australian Consumer Law. You are entitled to a replacement or refund for a major failure and compensation for any other reasonably foreseeable loss or damage caused by our goods. You are also entitled to have the goods repaired or replaced if the goods fail to be of acceptable quality and the failure does not amount to a major failure. If you require assistance please call ASRock Tel: +886-2-28965588 ext.123 (Standard International call charges apply)

UK CA

ASRock INC. hereby declares that this device is in compliance with the essential requirements and other relevant provisions of related UKCA Directives. Full text of UKCA declaration of conformity is available at: http://www.asrock.com

CE

ASRock 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: http://www.asrock.com

ASRock follows the green design concept to design and manufacture our products, and makes sure that each stage of the product life cycle of ASRock product is in line with global environmental regulations. In addition, ASRock disclose the relevant information based on regulation requirements.

Please refer to https://www.asrock.com/general/about.asp?cat=Responsibility for information disclosure based on regulation requirements ASRock is complied with:

ASROCK B660M-ITX/eDP - CE - 1

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.

CE Warning

This device complies with directive 2014/53/EU issued by the Commission of the European Community.

This equipment complies with EU radiation exposure limits set forth for an uncontrolled environment.

This equipment should be installed and operated with minimum distance 20cm between the radiator & your body.

Operations in the 5.15-5.35GHz band are restricted to indoor usage only.

ATBEBGCHCYCZDE
DKEEELESFIFRHR
HUIEISITLILTLU
LVMTNLNOPLPTRO
SESISKTR

ASROCK B660M-ITX/eDP - CE Warning - 1

Radio transmit power per transceiver type

Function Frequency Maximum Output Power (EIRP)

2400-2483.5 MHz 18.5 + / -1.5 dbm
5150-5250 MHz 21.5 + / -1.5 dbm
WiFi5250-5350 MHz18.5 + / -1.5 dbm (no TPC)
21.5 + / -1.5 dbm (TPC)
5470-5725 MHz25.5 + / -1.5 dbm (no TPC)
28.5 + / -1.5 dbm (TPC)

Bluetooth 2400-2483.5 MHz 8.5 + / -1.5 dbm

ASRock Incorporation

Contains Wi-Fi module with Bluetooth

Intel® Wi-Fi 9462

Model: 9462NGW

FCC ID: PD99462NG

IC:1000M-9462NG

ASROCK B660M-ITX/eDP - CE Warning - 2

ASROCK B660M-ITX/eDP - CE Warning - 3

ASROCK B660M-ITX/eDP - CE Warning - 4

R 003-170245

T D170151003

ASROCK B660M-ITX/eDP - CE Warning - 5

CCAH17LP4350T0

5.15\~5.35GHz indoor use only

Motherboard Layout

Top Side View
ASROCK B660M-ITX/eDP - Motherboard Layout - 1

text_image 16 M2_WIFI USB 3.2 Gm T:USB32_1 B:USB32_2 Top: RJ-45 USB 2.0 USB_1 USB 2.0 USB_2 USB 2.0 USB_3 USB 2.0 USB_4 CPU USB 2.0 USB_1 USB 2.0 USB_2 CPU CPU M2_1 Intel B660 PCIE1 RoHS B660M-ITX/eDP ASRock DDR4_A1 (64 bit, 288-pin module) DDR4_B1 (64 bit, 288-pin module) ATXPWR1 ATXPWR1 1 2 3 4 5 6 7 8 9 10 11 12 13 14

Back Side View

ASROCK B660M-ITX/eDP - Back Side View - 1

text_image EDP1 10 1 17

No. Description

1 Chassis Fan Connector (CHA_FAN2)
2 ATX 12V Power Connector (ATX12V1)
3 CPU Fan Connector (CPU_FAN1)
4 Chassis/Water Pump Fan Connector (CHA_FAN1/WP)
5 2 x 288-pin DDR4 DIMM Slots (DDR4_A1, DDR4_B1)
6 ATX Power Connector (ATXPWR1)
7 USB 2.0 Header (USB_5_6)
8 USB 3.2 Gen1 Header (USB32_3_4)
9 SATA3 Connector (SATA3_0)
10 SATA3 Connector (SATA3_1)
11 SATA3 Connector (SATA3_2)
12 SATA3 Connector (SATA3_3)
13 System Panel Header (PANEL1)
14 Clear CMOS Jumper (CLRMOS1)
15 Chassis Speaker Header (SPEAKER1)
16 Front Panel Audio Header (HD_AUDIO1)
17 eDP Signal Connector (EDP1)

I/O Panel
ASROCK B660M-ITX/eDP - No. Description - 1

text_image Diagram showing labeled components of a computer interface, including ports, servers, and indicators

No. Description No. Description

1 LAN RJ-45 Port* 6 USB 3.2 Gen1 Ports (USB32_12)
2 Line In (Light Blue)** 7 USB 2.0 Ports (USB_1234)***
3 Front Speaker (Lime) ^ 8 DisplayPort 1.4
4 Microphone (Pink) ^
9 HDMI Port
5 Antenna Ports

* There are two LEDs on each LAN port. Please refer to the table below for the LAN port LED indications.

ACT/LINK LED
ASROCK B660M-ITX/eDP - No. Description No. Description - 1
LAN Port

Status Description Status Description

Off No Link Off10Mbps connection
BlinkingData Activity Orange100Mbps connection
On LinkGreen1Gbps connection

** Function of the Audio Ports in 7.1-channel Configuration:

PortFunction
Light Blue (Rear panel)Rear Speaker Out
Lime (Rear panel)Front Speaker Out
Pink (Rear panel)Central /Subwoofer Speaker Out
Lime (Front panel)Side Speaker Out

*** CNVi BT shares bandwidth with the top USB 2.0 port (USB_1). When CNVi BT is used, USB_1 becomes unavailable.

WiFi-802.11ac Module and ASRock WiFi 2.4/5 GHz Antennas

WiFi-802.11ac + BT Module

This motherboard comes with an exclusive WiFi 802.11 a/b/g/n/ac + BT v5.1 module (pre-installed on the rear I/O panel) that offers support for WiFi 802.11 a/b/g/n/ac connectivity standards and Bluetooth v5.1. WiFi + BT module is an easy-to-use wireless local area network (WLAN) adapter to support WiFi + BT. Bluetooth v5.1 standard features Smart Ready technology that adds a whole new class of functionality into the mobile devices. BT 5.1 also includes Low Energy Technology and ensures extraordinary low power consumption for PCs.

* The transmission speed may vary according to the environment.

* CNVi BT shares bandwidth with the top USB 2.0 port (USB_1) on the rear I/O. When CNVi BT is used, USB_1 becomes unavailable.

WiFi Antennas Installation Guide

ASROCK B660M-ITX/eDP - WiFi Antennas Installation Guide - 1

natural_image Two identical cylindrical objects with segmented ends, no text or symbols visible

Step 1

Prepare the WiFi 2.4/5 GHz Antennas that come with the package.

ASROCK B660M-ITX/eDP - Step 1 - 1

natural_image Technical line drawing of a mechanical assembly with two cylindrical components and a central bracket (no text or symbols)

Step 2

Connect the two WiFi 2.4/5 GHz Antennas to the antenna connectors. Turn the antenna clockwise until it is securely connected.

ASROCK B660M-ITX/eDP - Step 2 - 1

natural_image Mechanical assembly diagram showing a lever mechanism with rotating arrows (no text or symbols)

Step 3

Set the WiFi 2.4/5 GHz Antenna as shown in the illustration.

*You may need to adjust the direction of the antenna for a stronger signal.

Chapter 1 Introduction

Thank you for purchasing ASRock B660M-ITX/eDP motherboard, a reliable motherboard produced under ASRock's consistently stringent quality control. It delivers excellent performance with robust design conforming to ASRock's commitment to quality and endurance.

ASROCK B660M-ITX/eDP - Chapter 1 Introduction - 1

Because the motherboard specifications and the BIOS software might be updated, the content of this documentation will be subject to change without notice. In case any modifications of this documentation occur, the updated version will be available on ASRock's website without further notice. If you require technical support related to this motherboard, please visit our website for specific information about the model you are using. You may find the latest VGA cards and CPU support list on ASRock's website as well. ASRock website http://www.asrock.com.

1.1 Package Contents

• ASRock B660M-ITX/eDP Motherboard (Mini-ITX Form Factor)
• ASRock B660M-ITX/eDP Quick Installation Guide
• ASRock B660M-ITX/eDP Support CD
• 2 x Serial ATA (SATA) Data Cables (Optional)
• 2 x ASRock WiFi 2.4/5 GHz Antennas (Optional)
• 1 x Screw for M.2 Socket (Optional)
• 1 x I/O Panel Shield

1.2 Specifications

PlatformMini-ITX Form FactorSolid Capacitor design
CPUSupports 14^th , 13^th & 12^th Gen Intel® CoreTM Processors (LGA1700)Digi Power design6 Power Phase designSupports Intel® Hybrid TechnologySupports Intel® Turbo Boost Max 3.0 Technology
ChipsetIntel® B660
MemoryDual Channel DDR4 Memory Technology2 x DDR4 DIMM SlotsSupports DDR4 non-ECC, un-buffered memory up to 5000+(OC)*Supports DDR4 3200 natively.* Please refer to Memory Support List on ASRock's website for more information. (http://www.asrock.com/)Supports ECC UDIMM memory modules (operate in non-ECC mode)Max. capacity of system memory: 64GBSupports Intel® Extreme Memory Profile (XMP) 2.0
Expansion SlotCPU:1 x PCIe 4.0 x16 Slot (PCIE1), supports x16 mode*Chipset:1 x Vertical M.2 Socket (Key E), supports type 2230 Intel® CNVi (Integrated WiFi/BT)**Supports NVMe SSD as boot disks** CNVi BT shares bandwidth with the top USB 2.0 port (USB_1) on the rear I/O. When CNVi BT is used, USB_1 becomes unavailable.
GraphicsIntel® UHD Graphics Built-in Visuals and the VGA outputs can be supported only with processors which are GPU integrated.Intel® Xe Graphics Architecture (Gen 12)
  • Three graphics output options: eDP 1.4, HDMI and DisplayPort 1.4
    • Supports Triple Monitor
  • Supports eDP 1.4 with max. resolution up to Full HD (1920x1080) @ 60Hz
  • Supports HDMI 2.1 TMDS Compatible with max. resolution up to 4K x 2K (4096x2160) @ 60Hz
  • Supports DisplayPort 1.4 with DSC (compressed) max. resolution up to 8K (7680x4320) @ 60Hz / 5K (5120x3200) @ 120Hz
  • Supports HDCP 2.3 with eDP 1.4, HDMI 2.1 TMDS Compatible and DisplayPort 1.4 Ports

Audio

• 7.1 CH HD Audio (Realtek ALC897 Audio Codec)

• Supports Surge Protection

LAN

• Gigabit LAN 10/100/1000 Mb/s

• Giga PHY Intel® I219V

• Supports Wake-On-LAN

• Supports Lightning/ESD Protection

• Supports Energy Efficient Ethernet 802.3az

• Supports UEFI PXE

Wireless

• 802.11ac WiFi Module

• Supports IEEE 802.11a/b/g/n/ac

• Supports Dual-Band (2.4/5 GHz)

• Supports high speed wireless connections up to 433Mbps

• Supports Bluetooth 5.1 + High speed class II

Rear Panel

- 2 x Antenna Ports

- 1 x HDMI Port

- 1 x DisplayPort 1.4

- 2 x USB 3.2 Gen1 Ports (Supports ESD Protection)

- 4 x USB 2.0 Ports (Supports ESD Protection)*

* CNVi BT shares bandwidth with the top USB 2.0 port (USB_1). When CNVi BT is used, USB_1 becomes unavailable.

- 1 x RJ-45 LAN Port with LED (ACT/LINK LED and SPEED LED)

• HD Audio Jacks: Line in / Front Speaker / Microphone

Storage

Chipset:

  • 1 x Ultra M.2 Socket (M2_1, Key M), supports type 2280 SATA3 6.0 Gb/s & PCIe Gen3x4 (32 Gb/s) modes*
    • 4 x SATA3 6.0 Gb/s Connectors**

* Supports Intel® Optane™ Technology
* Supports Intel® Volume Management Device (VMD)
* Supports NVMe SSD as boot disks
* Supports ASRock U.2 Kit
** If M2_1 is occupied by a SATA-type M.2 device, SATA3_0 will be disabled.

RAID

- Supports RAID 0, RAID 1, RAID 5 and RAID 10 for SATA storage devices

Connector

• 1 x eDP Signal Connector
• 1 x CPU Fan Connector (4-pin)

* The CPU Fan Connector supports the CPU fan of maximum 1A (12W) fan power.

• 1 x Chassis Fan Connector (4-pin)

* The Chassis Fan Connector supports the chassis fan of maximum 1A (12W) fan power.

- 1 x Chassis/Water Pump Fan Connector (4-pin) (Smart Fan Speed Control)

* The Chassis/Water Pump Fan supports the water cooler fan of maximum 2A (24W) fan power.

* CHA_FAN1/WP can auto detect if 3-pin or 4-pin fan is in use.

• 1 x 24 pin ATX Power Connector
• 1 x 8 pin 12V Power Connector
• 1 x Front Panel Audio Connector
- 1 x USB 2.0 Header (Supports 2 USB 2.0 ports) (Supports ESD Protection)
- 1 x USB 3.2 Gen1 Header (Supports 2 USB 3.2 Gen1 ports) (Supports ESD Protection)

BIOS

• AMI UEFI Legal BIOS with multilingual GUI support

Feature

• ACPI 6.0 Compliant wake up events

- SMBIOS 2.7 Support

- CPU Core/Cache, CPU GT, DRAM, VCCIN AUX, +1.05V PROC, +1.8V PROC, +0.82V PCH, +1.05V PCH Voltage Multi-adjustment

Hardware Monitor

• Fan Tachometer: CPU, Chassis, Chassis/Water Pump Fans
- Quiet Fan (Auto adjust chassis fan speed by CPU temperature): CPU, Chassis, Chassis/Water Pump Fans
- Fan Multi-Speed Control: CPU, Chassis, Chassis/Water Pump Fans
- Voltage monitoring: CPU Vcore, +12V, +5V, +3.3V, +1.05V PCH

os

- Microsoft® Windows® 10 64-bit / 11 64-bit

Certifications

  • FCC, CE
  • ErP/EuP ready (ErP/EuP ready power supply is required)

* For detailed product information, please visit our website: http://www.asrock.com

ASROCK B660M-ITX/eDP - Certifications - 1

Please realize that there is a certain risk involved with overclocking, including adjusting the setting in the BIOS, applying Untied Overclocking Technology, or using third-party overclocking tools. Overclocking may affect your system's stability, or even cause damage to the components and devices of your system. It should be done at your own risk and expense. We are not responsible for possible damage caused by overclocking.

Chapter 2 Installation

This is a Mini-ITX form factor motherboard. Before you install the motherboard, study the configuration of your chassis to ensure that the motherboard fits into it.

Pre-installation Precautions

Take note of the following precautions before you install motherboard components or change any motherboard settings.

  • Make sure to unplug the power cord before installing or removing the motherboard components. Failure to do so may cause physical injuries and damages to motherboard components.
  • In order to avoid damage from static electricity to the motherboard's components, NEVER place your motherboard directly on a carpet. Also remember to use a grounded wrist strap or touch a safety grounded object before you handle the components.
  • Hold components by the edges and do not touch the ICs.
  • Whenever you uninstall any components, place them on a grounded anti-static pad or in the bag that comes with the components.
  • When placing screws to secure the motherboard to the chassis, please do not over-tighten the screws! Doing so may damage the motherboard.

2.1 Installing the CPU

ASROCK B660M-ITX/eDP - Installing the CPU - 1

  1. Before you insert the 1700-Pin CPU into the socket, please check if the PnP cap is on the socket, if the CPU surface is unclean, or if there are any bent pins in the socket. Do not force to insert the CPU into the socket if above situation is found. Otherwise, the CPU will be seriously damaged.
  2. Unplug all power cables before installing the CPU.

1
ASROCK B660M-ITX/eDP - Installing the CPU - 2

natural_image 3D diagram of a device casing with labeled arrows A and B indicating directional components (no text or symbols beyond labels)

2
ASROCK B660M-ITX/eDP - Installing the CPU - 3

natural_image Diagram of a mechanical component with an arrow indicating rotation or movement, no text or symbols present

3
ASROCK B660M-ITX/eDP - Installing the CPU - 4

natural_image Technical line drawing of a mechanical device with a curved handle and orange arrow indicating motion (no text or symbols)

ASROCK B660M-ITX/eDP - Installing the CPU - 5

natural_image Technical line drawing of a mechanical assembly with no visible text or symbols

ASROCK B660M-ITX/eDP - Installing the CPU - 6

natural_image Diagram of a mechanical device with a hook and orange curved arrow indicating motion (no text or symbols)

ASROCK B660M-ITX/eDP - Installing the CPU - 7

natural_image Diagram of a mechanical component with an arrow indicating rotation or movement, no text or symbols present

ASROCK B660M-ITX/eDP - Installing the CPU - 8

natural_image Diagram of a computer processor showing internal components and a close-up view of the base (no text or symbols)

ASROCK B660M-ITX/eDP - Installing the CPU - 9

Please save and replace the cover if the processor is removed. The cover must be placed if you wish to return the motherboard for after service.

2.2 Installing the CPU Fan and Heatsink

ASROCK B660M-ITX/eDP - Installing the CPU Fan and Heatsink - 1

natural_image Technical line drawing of a pipette inserted into a microchip (no text or symbols)

1
ASROCK B660M-ITX/eDP - Installing the CPU Fan and Heatsink - 2

text_image Technical diagram of a CPU fan assembly with directional arrows indicating rotation and component placement

2
ASROCK B660M-ITX/eDP - Installing the CPU Fan and Heatsink - 3

text_image CP-124h

2.3 Installing Memory Modules (DIMM)

This motherboard provides two 288-pin DDR4 (Double Data Rate 4) DIMM slots, and supports Dual Channel Memory Technology.

ASROCK B660M-ITX/eDP - Installing Memory Modules (DIMM) - 1

  1. For dual channel configuration, you always need to install identical (the same brand, speed, size and chip-type) DDR4 DIMM pairs.
  2. It is unable to activate Dual Channel Memory Technology with only one memory module installed.
  3. It is not allowed to install a DDR, DDR2 or DDR3 memory module into a DDR4 slot; otherwise, this motherboard and DIMM may be damaged.

ASROCK B660M-ITX/eDP - Installing Memory Modules (DIMM) - 2

The DIMM only fits in one correct orientation. It will cause permanent damage to the motherboard and the DIMM if you force the DIMM into the slot at incorrect orientation.

1
ASROCK B660M-ITX/eDP - Installing Memory Modules (DIMM) - 3

natural_image Technical line drawing of a mechanical support structure with an orange arrow indicating rotation (no text or symbols)

2
ASROCK B660M-ITX/eDP - Installing Memory Modules (DIMM) - 4

natural_image Illustration of hands assembling a mechanical component with a highlighted section (no text or symbols)

3

ASROCK B660M-ITX/eDP - Installing Memory Modules (DIMM) - 5

natural_image Isometric line drawing of a rectangular device with multiple square panels and a curved arrow indicating rotation (no text or symbols)

2.4 Expansion Slots (PCIe Slot)

There is 1 PCIe slot on the motherboard.

ASROCK B660M-ITX/eDP - Expansion Slots (PCIe Slot) - 1

Before installing an expansion card, please make sure that the power supply is switched off or the power cord is unplugged. Please read the documentation of the expansion card and make necessary hardware settings for the card before you start the installation.

PCIe slots:

PCIE1 (PCIe 4.0 x16 slot) is used for PCIe x16 lane width graphics cards.

2.5 Jumpers Setup

The illustration shows how jumpers are setup. When the jumper cap is placed on the pins, the jumper is “Short”. If no jumper cap is placed on the pins, the jumper is “Open”.

ASROCK B660M-ITX/eDP - Jumpers Setup - 1
Short

ASROCK B660M-ITX/eDP - Jumpers Setup - 2
Open

Clear CMOS Jumper

(CLRMOS1)

(see p.1, No. 14)

ASROCK B660M-ITX/eDP - Jumpers Setup - 3
2-pin Jumper

CLRMOS1 allows you to clear the data in CMOS. To clear and reset the system parameters to default setup, please turn off the computer and unplug the power cord from the power supply. After waiting for 15 seconds, use a jumper cap to short the pins on CLRMOS1 for 5 seconds. However, please do not clear the CMOS right after you update the BIOS. If you need to clear the CMOS when you just finish updating the BIOS, you must boot up the system first, and then shut it down before you do the clear-CMOS action. Please be noted that the password, date, time, and user default profile will be cleared only if the CMOS battery is removed. Please remember to remove the jumper cap after clearing the CMOS.

2.6 Onboard Headers and Connectors

ASROCK B660M-ITX/eDP - Onboard Headers and Connectors - 1

Onboard headers and connectors are NOT jumpers. Do NOT place jumper caps over these headers and connectors. Placing jumper caps over the headers and connectors will cause permanent damage to the motherboard.

System Panel Header

(9-pin PANEL1)

(see p.1, No. 13)

ASROCK B660M-ITX/eDP - Onboard Headers and Connectors - 2

text_image GND PWRBTN# PLED- PLED+ GND RESET# GND HDLED- HDLED+ 1

Connect the power button, reset button and system status indicator on the chassis to this header according to the pin assignments below. Note the positive and negative pins before connecting the cables.

ASROCK B660M-ITX/eDP - Onboard Headers and Connectors - 3

PWRBTN (Power Button):

Connect to the power button on the chassis front panel. You may configure the way to turn off your system using the power button.

RESET (Reset Button):

Connect to the reset button on the chassis front panel. Press the reset button to restart the computer if the computer freezes and fails to perform a normal restart.

PLED (System Power LED):

Connect to the power status indicator on the chassis front panel. The LED is on when the system is operating. The LED keeps blinking when the system is in S1/S3 sleep state. The LED is off when the system is in S4 sleep state or powered off (S5).

HDLED (Hard Drive Activity LED):

Connect to the hard drive activity LED on the chassis front panel. The LED is on when the hard drive is reading or writing data.

The front panel design may differ by chassis. A front panel module mainly consists of power button, reset button, power LED, hard drive activity LED, speaker and etc. When connecting your chassis front panel module to this header, make sure the wire assignments and the pin assignments are matched correctly.

Serial ATA3 Connectors

(SATA3_0:

see p.1, No. 9)

(SATA3_1:

see p.1, No. 10)

(SATA3_2:

see p.1, No. 11)

(SATA3_3:

see p.1, No. 12)

ASROCK B660M-ITX/eDP - HDLED (Hard Drive Activity LED): - 1

text_image SATA3_3 SATA3_1 SATA3_2 SATA3_0

These four SATA3

connectors support SATA data cables for internal

storage devices with up to

6.0 Gb/s data transfer rate.

* If M2_1 is occupied by a SATA-type M.2 device,

SATA3_0 will be disabled.

USB 2.0 Header

(9-pin USB_5_6)

(see p.1, No. 7)

ASROCK B660M-ITX/eDP - HDLED (Hard Drive Activity LED): - 2

text_image USB_PWR P- P+ GNDND 1 USB_PWR P- P+ DUMMY

There is one USB

2.0 header on this motherboard. This USB

2.0 header can support two ports.

USB 3.2 Gen1 Header

(19-pin USB32_3_4)

(see p.1, No. 8)

ASROCK B660M-ITX/eDP - HDLED (Hard Drive Activity LED): - 3

text_image Vbus/Vbus IntA_PB_SSRX- IntA_PB_SSRX+ GND IntA_PB_SSTX- IntA_PB_SSTX+ GND IntA_PB_D- IntA_PB_D- Dummy 1

There is one header on this motherboard. This

USB 3.2 Gen1 header can support two ports.

Front Panel Audio Header

(9-pin HD_AUDIO1)

(see p.1, No. 16)

ASROCK B660M-ITX/eDP - HDLED (Hard Drive Activity LED): - 4

This header is for connecting audio devices to the front audio panel.

ASROCK B660M-ITX/eDP - HDLED (Hard Drive Activity LED): - 5

  1. High Definition Audio supports Jack Sensing, but the panel wire on the chassis must support HDA to function correctly. Please follow the instructions in our manual and chassis manual to install your system.
  2. If you use an AC'97 audio panel, please install it to the front panel audio header by the steps below:

A. Connect Mic_IN (MIC) to MIC2_L.
B. Connect Audio_R (RIN) to OUT2_R and Audio_L (LIN) to OUT2_L.
C. Connect Ground (GND) to Ground (GND).
D. MIC_RET and OUT_RET are for the HD audio panel only. You don't need to connect them for the AC'97 audio panel.
E. To activate the front mic, go to the "FrontMic" Tab in the Realtek Control panel and adjust "Recording Volume".

Chassis Speaker Header

(4-pin SPEAKER1)

(see p.1, No. 15)

ASROCK B660M-ITX/eDP - HDLED (Hard Drive Activity LED): - 6

Please connect the chassis speaker to this header.

Chassis/Water Pump Fan

Connector

(4-pin CHA_FAN1/WP)

(see p.1, No. 4)

ASROCK B660M-ITX/eDP - HDLED (Hard Drive Activity LED): - 7

text_image FAN_SPEED_CONTROL CHA_FAN_SPEED FAN_VOLTAGE GND

This motherboard provides a 4-Pin water cooling chassis fan connector. If you plan to connect a 3-Pin chassis water cooler fan, please connect it to Pin 1-3.

Chassis Fan Connector

(4-pin CHA_FAN2)

(see p.1, No. 1)

ASROCK B660M-ITX/eDP - HDLED (Hard Drive Activity LED): - 8

text_image FAN_SPEED_CONTROL CHA_FAN_SPEED +12V GND

Please connect fan cables to the fan connector and match the black wire to the ground pin.

CPU Fan Connector

(4-pin CPU_FAN1)

(see p.1, No. 3)

ASROCK B660M-ITX/eDP - HDLED (Hard Drive Activity LED): - 9

This motherboard provides a 4-Pin CPU fan (Quiet Fan) connector. If you plan to connect a 3-Pin CPU fan, please connect it to Pin 1-3.

ATX Power Connector

(24-pin ATXPWR1)

(see p.1, No. 6)

ASROCK B660M-ITX/eDP - HDLED (Hard Drive Activity LED): - 10

This motherboard provides a 24-pin ATX power connector. To use a 20-pin ATX power supply, please plug it along Pin 1 and Pin 13.

ATX 12V Power Connector (8-pin ATX12V1) (see p.1, No. 2)

ASROCK B660M-ITX/eDP - HDLED (Hard Drive Activity LED): - 11

This motherboard provides a 8-pin ATX 12V power connector. To use a 4-pin ATX power supply, please plug it along Pin 1 and Pin 5.

*Warning: Please make sure that the power cable connected is for the CPU and not the graphics card. Do not plug the PCIe power cable to this connector.

eDP Signal Connector (40-pin EDP1) (see p.2, No. 17)

ASROCK B660M-ITX/eDP - HDLED (Hard Drive Activity LED): - 12

PIN SIGNAL

1N/A
2LCD_BLT_VCC
3LCD_BLT_VCC
4LCD_BLT_VCC
5LCD_BLT_VCC
6N/A
7N/A
8eDP_VARY_BL
9eDP_BLON
10BKI_GND
11BKI_GND
12BKT_GND
13BKT_GND
14cDP_HPD_CON
15PNL_GND
16PNL_GND
17PNL_GND
18PNL_GND
19N/A
20+LVDD
21+LVDD
22+LVDD
23+LVDD
24GND
25cDP_AUX#_CON
26cDP_AUX_CON
27GND
28cDP_TX0_CON
29eDP_TX0_CON
30GND
31eDP_TX1_CON
32eDP_TX1_CON
33GND
34N/A
35N/A
36GND
37N/A
38N/A
39GND
40N/A

This connector is for an LCD monitor that supports an internal embedded DisplayPort (eDP).

*Please refer to page 29 for further instructions on how to adjust the brightness.

2.7 M.2\_SSD (NGFF) Module Installation Guide (M2\_1)

The M.2, also known as the Next Generation Form Factor (NGFF), is a small size and versatile card edge connector that aims to replace mPCIe and mSATA. The Ultra M.2 Socket (M2_1, Key M), supports type 2280 SATA3 6.0 Gb/s & PCIe Gen3x4 (32 Gb/s) modes.

* If M2_1 is occupied by a SATA-type M.2 device, SATA3_0 will be disabled.

Installing the M.2\_SSD (NGFF) Module

ASROCK B660M-ITX/eDP - Installing the M.2\_SSD (NGFF) Module - 1

natural_image Pure technical line drawing of a rectangular component with no text or symbols

Step 1

Prepare a M.2_SSD (NGFF) module and the screw.

ASROCK B660M-ITX/eDP - Step 1 - 1

natural_image Technical line drawing of a mechanical component with dimension lines and labeled section A (no text or symbols beyond labels)

Step 2

Depending on the PCB type and length of your M.2_SSD (NGFF) module, find the corresponding nut location to be used.

No.1

Nut Location A

PCB Length 8cm

Module Type Type 2280

ASROCK B660M-ITX/eDP - No.1 - 1

natural_image Technical diagram of a mechanical assembly with a lever and pivot, showing no text or symbols

Step 3

Align and gently insert the M.2 (NGFF) SSD module into the M.2 slot. Please be aware that the M.2 (NGFF) SSD module only fits in one orientation.

ASROCK B660M-ITX/eDP - Step 3 - 1

text_image A 20°

ASROCK B660M-ITX/eDP - Step 3 - 2

natural_image Simple line drawing of a mechanical setup with a spring, pulley, and rectangular block (no text or symbols)

Step 4

Tighten the screw with a screwdriver to secure the module into place. Please do not overtighten the screw as this might damage the module.

M.2\_SSD (NGFF) Module Support List

Vendor Interface P/N
ADATA SATA3 AXNS330E-32GM-B
ADATA SATA3 AXNS381E-128GM-B
ADATA SATA3 AXNS381E-256GM-B
ADATA SATA3 ASU800NS38-256GT-C
ADATA SATA3 ASU800NS38-512GT-C
ADATA PCIe3 x4 ASX7000NP-128GT-C
ADATA PCIe3 x4 ASX8000NP-256GM-C
ADATA PCIe3 x4 ASX7000NP-256GT-C
ADATA PCIe3 x4 ASX8000NP-512GM-C
ADATA PCIe3 x4 ASX7000NP-512GT-C
Apacer PCIe3 x4 AP240GZ280
Corsair PCIe3 x4 CSSD-F240GBMP500
Crucial SATA3 CT120M500SSD4
Crucial SATA3 CT240M500SSD4
Intel SATA3 Intel SSDSCKGW080A401/80G
Intel PCIe3 x4 SSDPEKKF256G7
Intel PCIe3 x4 SSDPEKKF512G7
Kingston SATA3 SM2280S3
Kingston PCIe3 x4 SKC1000/480G
Kingston PCIe2 x4 SH2280S3/480G
OCZ PCIe3 x4 RVD400 -M2280-512G (NVME)
PATRIOT PCIe3 x4 PH240GPM280SSDR NVME
Plextor PCIe3 x4 PX-128M8PeG
Plextor PCIe3 x4 PX-1TM8PeG
Plextor PCIe3 x4 PX-256M8PeG
Plextor PCIe3 x4 PX-512M8PeG
Plextor PCIe PX-G256M6e
Plextor PCIe PX-G512M6e
Samsung PCIe3 x4 SM961 MZVPW128HEGM (NVM)
Samsung PCIe3 x4 PM961 MZVLW128HEGR (NVME)
Samsung PCIe3 x4 960 EVO (MZ-V6E250) (NVME)
Samsung PCIe3 x4 960 EVO (MZ-V6E250BW) (NVME)
Samsung PCIe3 x4 SM951 (NVME)
Samsung PCIe3 x4 SM951 (MZHPV256HDGL)
Samsung PCIe3 x4 SM951 (MZHPV512HDGL)
Samsung PCIe3 x4 SM951 (NVME)
Samsung PCIe x4 XP941-512G (MZHPU512HCGL)
SanDiskPCIe SD6PP4M-128G
SanDiskPCIe SD6PP4M-256G
TeamSATA3 TM4PS4128GMC105
TeamSATA3 TM4PS4256GMC105
TeamSATA3 TM8PS4128GMC105
TeamSATA3 TM8PS4256GMC105
TEAM PCIe3 x4 TM8FP2240G0C101
TEAM PCIe3 x4 TM8FP2480GC110
Transcend SATA3 TS256GMTS400
Transcend SATA3 TS512GMTS600
Transcend SATA3 TS512GMTS800
V-Color SATA3 VLM100-120G-2280B-RD
V-Color SATA3 VLM100-240G-2280RGB
V-Color SATA3 VSM100-240G-2280
V-Color SATA3 VLM100-240G-2280B-RD
WD SATA3 WDS100T1B0B-00AS40
WD SATA3 WDS240G1G0B-00RC30
WD PCIe3 x4 WDS256G1X0C-00ENX0 (NVME)
WD PCIe3 x4 WDS512G1X0C-00ENX0 (NVME)

For the latest updates of M.2_SSD (NFGG) module support list, please visit our website for details: http://www.asrock.com

2.8 Change Screen Brightness for eDP in Windows®

This section explains how to change screen brightness in Windows ^® when you use an eDP panel.

ASROCK B660M-ITX/eDP - Change Screen Brightness for eDP in Windows® - 1

The following is a setup example for Windows ^® 11. Setup procedures may vary from different operating systems.

Setup Guide

Step 1

Right click on desktop. Select Display settings.

ASROCK B660M-ITX/eDP - Step 1 - 1

text_image View Sort by Refresh Undo Rename Ctrl+Z New Display settings Personalize

Step 2

In System > Display, select Brightness. Move the slider to fine-tune the brightness level.

ASROCK B660M-ITX/eDP - Step 2 - 1

text_image System display settings interface showing brightness and color options with progress bar and HDR option

Step 3

You might also see another check box displayed: Help improve battery by optimizing the content shown and brightness. Select the check box to turn on the content adaptive brightness control if needed.

ASROCK B660M-ITX/eDP - Step 3 - 1

text_image System > Display Brightness & color Brightness Adjust the brightness of the built-in display Help improve battery by optimizing the content shown and brightness Learn more Night light Use warmer colors to help block blue light Off HDR HDR

1 Einleitung

Cavalier Clear CMOS (CLRMOS1)

(voir p.1, No. 14)

ASROCK B660M-ITX/eDP - Einleitung - 1

• Supporto WOL (Wake-On-LAN)

• Supporto Energy Efficient Ethernet 802.3az

- Supporto UEFI PXE

LAN wireless

- Modulo WiFi 802.11ac

• Supporta IEEE 802.11a/b/g/n/ac

• Supporta Dual-Band (2.4/5 GHz)

If you need to contact ASRock or want to know more about ASRock, you're welcome to visit ASRock's website at http://www.asrock.com; or you may contact your dealer for further information. For technical questions, please submit a support request form at https://event.asrock.com/tsd.asp

ASRock Incorporation

e-mail: info@asrock.com.tw

ASRock EUROPE B.V.

e-mail: sales@asrock.nl

ASRock America, Inc.

e-mail: sales@asrockamerica.com

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Product information

Brand : ASROCK

Model : B660M-ITX/eDP

Category : Motherboard