MSI B550M-A PRO User Manual

16


There is CMOS memory onboard that is external powered from a battery located on
the motherboard to save system configuration data. If you want to clear the system
configuration, set the jumpers to clear the CMOS memory.
Keep Data
(default)
Clear CMOS/ Reset
BIOS

 Power off the computer and unplug the power cord.
 Use a jumper cap to short JBAT1 for about 5-10 seconds.
 Remove the jumper cap from JBAT1.
 Plug the power cord and power on the computer.

These LEDs indicate the status of the motherboard.
 - indicates CPU is not detected or fail.
 - indicates DRAM is not detected or fail.
 - indicates GPU is not detected or fail.
 - indicates booting device is not detected or fail.

MSI B550M-A PRO Specifications

General

Processor socket	Socket AM4
Processor manufacturer	AMD
Compatible processor series	AMD Ryzen 3 3rd Gen, AMD Ryzen 5 3rd Gen
Maximum number of SMP processors	1
Maximum internal memory supported by processor	64 GB
ECC	Yes
Memory channels	Dual-channel
Memory slots type	DIMM
Number of memory slots	2
Supported memory types	DDR4-SDRAM
Supported memory clock speeds	1866, 2133, 2400, 2667, 2800, 2933, 3000, 3066, 3200, 3466, 3600, 3733, 3866, 4000, 4133, 4266, 4400, 4600 MHz
Supported memory module capacities	4GB, 8GB, 16GB, 32GB
RAID levels	0, 1, 10
Number of HDDs supported	4
Supported storage drive types	HDD & SSD
Supported storage drive interfaces	M.2, SATA III
DirectX version	12.0
Maximum resolution	4096 x 2160 pixels
Parallel processing technology support	-
USB 3.2 Gen 2 (3.1 Gen 2) connectors	0
USB connector type	USB Type-A
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
LAN controller	Realtek RTL8111H
Ethernet interface type	Gigabit Ethernet
Audio chip	Realtek ALC892 / Realtek ALC897
Component for	PC
Motherboard chipset	AMD B550
Audio output channels	7.1 channels
Motherboard form factor	micro ATX
Windows operating systems supported	Windows 10 x64
BIOS type	UEFI AMI
Cables included	SATA

Weight and Dimensions

Depth	200 mm
Width	236 mm