MSI PRO B660M-A WIFI DDR4 User Manual

1
Thank you for purchasing the MSI® motherboard. This User Guide gives
information about board layout, component overview, BIOS setup and software
installation.
Contents
Safety Information ........................................................................................................ 3
Specifications ................................................................................................................ 4
Special Features ........................................................................................................... 8
Back Panel Connectors ............................................................................................... 9
LAN Port LED Status Table .................................................................................. 10
Installing antennas (PRO B660M-A WIFI DDR4) .................................................. 11
Overview of Components ........................................................................................... 12
CPU Socket ........................................................................................................... 13
DIMM Slots ............................................................................................................ 14
PCI_E1~3: PCIe Expansion Slots .......................................................................... 15
JFP1, JFP2: Front Panel Connectors ................................................................... 15
M2_1~2: M.2 Slots (Key M) ................................................................................... 16
SATA5~8: SATA 6Gb/s Connectors ....................................................................... 18
JAUD1: Front Audio Connector ............................................................................ 18
CPU_PWR1~2, ATX_PWR1: Power Connectors ................................................... 19
CPU_FAN1, PUMP_FAN1, SYS_FAN1~2: Fan Connectors .................................. 20
JCI1: Chassis Intrusion Connector ....................................................................... 21
JBAT1: Clear CMOS (Reset BIOS) Jumper ........................................................... 21
JUSB4: USB 3.2 Gen 1 5Gbps Type-C Connector ................................................. 22
JUSB3: USB 3.2 Gen 1 Connector ........................................................................ 22
JUSB1~2: USB 2.0 Connectors ............................................................................. 23
JTPM1: TPM Module Connector ........................................................................... 23
JTBT1: Thunderbolt Add-on Card Connector ...................................................... 24
JCOM1: Serial Port Connector ............................................................................. 24
JDASH1: Tuning controller Connector ................................................................. 24
JRGB1: RGB LED connector ................................................................................. 25
JRAINBOW1~2: Addressable RGB LED connectors ............................................ 25

MSI PRO B660M-A WIFI DDR4 Specifications

General

Processor socket	LGA 1700
Processor manufacturer	Intel
Compatible processor series	Intel® Core™ i9
Non-ECC	Yes
Memory channels	Dual-channel
Memory slots type	DIMM
Number of memory slots	4
Supported memory types	DDR4-SDRAM
Maximum internal memory	128 GB
Supported memory clock speeds	2133, 2400, 2666, 2933, 3200, 3333, 3400, 3466, 3600, 3733, 3800, 4000, 4200, 4266, 4400, 4600, 4800 MHz
RAID levels	0, 1, 5, 10
Supported storage drive types	SSD
Supported storage drive interfaces	M.2, SATA III
DirectX version	12.0
Parallel processing technology support	Not supported
USB 2.0 connectors	2
USB 3.2 Gen 1 (3.1 Gen 1) connectors	1
USB 3.2 Gen 2 (3.1 Gen 2) connectors	0
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 standards	802.11a, 802.11b, 802.11g, Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac), Wi-Fi 6 (802.11ax)
Bluetooth version	5.2
Top Wi-Fi standard	Wi-Fi 6 (802.11ax)
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
Windows operating systems supported	Windows 10, Windows 11
BIOS type	EFI AMI
System Management BIOS (SMBIOS) version	3.2
Cables included	SATA
Harmonized System (HS) code	84733020
Weight	1000 g

Weight and Dimensions

Width	244 mm
Height	86 mm