MSI PRO B660M-A WIFI DDR4 User Manual

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Resetting BIOS
You might need to restore the default BIOS settings to solve certain problems. There
are several ways to reset BIOS:
 Go to BIOS and press F6 to load optimized defaults.
 Short the Clear CMOS jumper on the motherboard.

Important
Be sure the computer is off before clearing CMOS data. Please refer to the Clear
CMOS jumper section for resetting BIOS.
Updating BIOS
Updating BIOS with M-FLASH
Before updating:
Please download the latest BIOS file that matches your motherboard model from MSI
website. And then save the BIOS file into the USB flash drive.
Updating BIOS:
1. Insert the USB flash drive that contains the update file into the USB port.
2. Please refer the following methods to enter flash mode.
• Reboot and press Ctrl + F5 key during POST and click on Yes to reboot the system.
• Reboot and press Del key during POST to enter BIOS. Click the M-FLASH button
and click on Yes to reboot the system.
3. Select a BIOS file to perform the BIOS update process.
4. When prompted click on Yes to start recovering BIOS.
5. After the flashing process is 100% completed, the system will reboot automatically.

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