MSI PRO B660M-G DDR4 User Manual

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󸛚󳿜 Contents
Contents
2
3
 8
9
CPU Socket ...............................................................................................................10
DIMM Slots................................................................................................................11
DIMM Slots................................................................................................................11
PCI_E1~2: PCIe Expansion Slots ..............................................................................11
JFP1, JFP2: Front Panel Connectors .......................................................................12
JAUD1: Front Audio Connector ................................................................................12
SATA5~8: SATA 6Gb/s Connectors ...........................................................................13
M2_1~2: M.2 Slots (Key M) .......................................................................................13
ATX_PWR1, CPU_PWR1: Power Connectors ...........................................................14
JUSB1~2: USB 2.0 Connectors .................................................................................15
JUSB3: USB 3.2 Gen 1 5Gbps Connector .................................................................15
CPU_FAN1, SYS_FAN1~2: Fan Connectors .............................................................16
JTPM1: TPM Module Connector ...............................................................................16
JCI1: Chassis Intrusion Connector ...........................................................................17
JCOM1: Serial Port Connector .................................................................................17
JDASH1: Tuning controller Connector .....................................................................17
JBAT1: Clear CMOS (Reset BIOS) Jumper ...............................................................18
JRAINBOW1~2: Addressable RGB LED connectors
(PRO B660M-G DDR4) .......................................................................................18
JRGB1: RGB LED connector
(PRO B660M-G DDR4) .......................................................................................19
EZ Debug LED ...........................................................................................................19
20
Installing Windows 10 / Windows 11 ........................................................................20
Installing Drivers ......................................................................................................20
MSI Center ................................................................................................................20
21
BIOS Setup ................................................................................................................22
Entering BIOS Setup .................................................................................................22
BIOS User Guide .......................................................................................................22
Resetting BIOS ..........................................................................................................23
Updating BIOS...........................................................................................................23
Thank you for purchasing the MSI® 
motherboard. This User Guide gives
information about board layout, component overview, BIOS
setup and software installation.

MSI PRO B660M-G DDR4 Specifications

General

Processor socket	LGA 1700
Processor manufacturer	Intel
Compatible processor series	Intel® Core™ i9
Maximum number of SMP processors	1
Non-ECC	Yes
Memory channels	Dual-channel
Memory slots type	DIMM
Number of memory slots	2
Supported memory types	DDR4-SDRAM
Maximum internal memory	64 GB
Supported memory clock speeds	2133, 2666, 2933, 3200, 4000, 4600 MHz
Supported storage drive types	SSD
Supported storage drive interfaces	PCI Express 3.0, PCI Express 4.0
Parallel processing technology support	Not supported
Number of SATA III connectors	4
USB 3.2 Gen 2 (3.1 Gen 2) connectors	0
BIOS type	UEFI AMI
BIOS memory size	256 Mbit
System Management BIOS (SMBIOS) version	3.4
DisplayPort version	1.4
USB 2.0 ports quantity	USB 2.0 ports have a data transmission speed of 480 Mbps, and are backwards compatible with USB 1.1 ports. You can connect all kinds of peripheral devices to them.
Wi-Fi	No
Ethernet interface type	2.5 Gigabit Ethernet
Audio chip	Realtek ALC897
Component for	PC
Motherboard chipset	Intel B660
Audio output channels	7.1 channels
Motherboard form factor	micro ATX
Cables included	SATA
Harmonized System (HS) code	84733020
Weight	764 g

Weight and Dimensions

Depth	220 mm
Width	244 mm
Height	65 mm

Summary

Safety Information

Specifications

Back Panel Connectors

Rear I/O Panel

Overview of Components

CPU Socket

Detailed steps and important notes for installing a CPU into the motherboard socket.

DIMM Slots

Instructions and important considerations for installing RAM modules into the DIMM slots.

PCIe Expansion Slots

Guidance on installing expansion cards into PCIe slots and support for different card sizes.

Front Panel Connectors

Front Audio Connector

SATA 6Gb/s Connectors

M.2 Slots

Guidance on installing M.2 solid-state drives into the motherboard's M.2 slots.

Power Connectors

Details on connecting ATX power supply cables to the motherboard's power connectors.

USB 2.0 Connectors

USB 3.2 Gen 1 5Gbps Connector

Instructions for connecting front panel USB 3.2 Gen 1 ports to the motherboard.

Fan Connectors

Details on connecting CPU and system fans to the motherboard's fan headers.

Clear CMOS Jumper

Procedure to reset BIOS settings to default values using the Clear CMOS jumper.

EZ Debug LED

Explanation of the EZ Debug LEDs and what they indicate about system status.

Installing OS, Drivers & MSI Center

Installing Windows 10 / Windows 11

Step-by-step guide for installing Windows 10 or Windows 11 operating systems.

Installing Drivers

Instructions for installing necessary drivers from the provided MSI drive disc.

MSI Center

UEFI BIOS

BIOS Setup

Guidance on optimal BIOS default settings and considerations for system stability.

Entering BIOS Setup

Steps and function keys to access the BIOS setup menu during system startup.

Resetting BIOS

Updating BIOS

Instructions for updating the motherboard BIOS using M-FLASH utility.

Updating BIOS with MSI Center

Steps to update the motherboard BIOS using the MSI Center software.

Technical Support