MSI MEG B550 UNIFY User Manual

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UEFI BIOS
UEFI BIOS
MSI UEFI BIOS is compatible with UEFI (Unified Extensible Firmware Interface)
architecture. UEFI has many new functions and advantages that traditional BIOS
cannot achieve, and it will completely replace BIOS in the future. The MSI UEFI
BIOS uses UEFI as the default boot mode to take full advantage of the new chipset’s
capabilities. However, it still has a CSM (Compatibility Support Module) mode to be
compatible with older devices. That allows you to replace legacy devices with UEFI
compatible devices during the transition.
⚠
Important
The term BIOS in this user guide refers to UEFI BIOS unless otherwise noted.
UEFI advantages
∙ Fast booting - UEFI can directly boot the operating system and save the BIOS self-
test process. And also eliminates the time to switch to CSM mode during POST.
∙ Supports for hard drive partitions larger than 2 TB.
∙ Supports more than 4 primary partitions with a GUID Partition Table (GPT).
∙ Supports unlimited number of partitions.
∙ Supports full capabilities of new devices - new devices may not provide backward
compatibility.
∙ Supports secure startup - UEFI can check the validity of the operating system to
ensure that no malware tampers with the startup process.
Incompatible UEFI cases
∙ 32-bit Windows operating system - this motherboard supports only Windows 10
64-bit operating system.
∙ Older graphics card - the system will detect your graphics card. When display a
warning message There is no GOP (Graphics Output protocol) support detected in
this graphics card.
⚠
Important
We recommend that you to use a GOP/ UEFI compatible graphics card.
How to check the BIOS mode?
After entering the BIOS, find the BIOS Mode at the top of the screen.
CPU Temperature:
Motherboard Temperature:
VCore:
DDR Voltage:
BIOS Mode: CSM/UEFI
CPU Temperature:
Motherboard Temperature:
VCore:
DDR Voltage:
BIOS Mode: CSM/UEFI
UEFI boot mode CSM boot mode

MSI MEG B550 UNIFY Specifications

General

Processor socket	Socket AM4
Processor manufacturer	AMD
Compatible processor series	AMD Ryzen 3, AMD Ryzen 5, AMD Ryzen 7, AMD Ryzen 9 3rd Gen
Maximum number of SMP processors	1
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	1866, 2133, 2400, 2667, 2800, 2933, 3000, 3066, 3200, 3466, 3600, 3733, 3866, 4000, 4133, 4266, 4400, 4533, 4600, 4733, 4866, 5000, 5100, 5600 MHz
RAID levels	0, 1, 10
Supported storage drive types	HDD & SSD
Number of storage drives supported	10
Supported storage drive interfaces	M.2, SATA
DirectX version	12.0
Maximum resolution	4096 x 2160 pixels
Maximum graphics card memory	16384 MB
Parallel processing technology support	2-Way CrossFireX
USB 2.0 connectors	2
Number of SATA II connectors	0
Number of SATA III connectors	6
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.
USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity	3
LAN controller	Realtek RTL8125B
Wi-Fi standards	802.11a, 802.11b, 802.11g, Wi-Fi 4 (802.11n), Wi-Fi 6 (802.11ax)
Bluetooth version	5.1
Top Wi-Fi standard	Wi-Fi 6 (802.11ax)
WLAN controller model	Intel Wi-Fi 6 AX200
Ethernet interface type	2.5 Gigabit Ethernet
Audio chip	Realtek ALC1220P
Component for	PC
Motherboard chipset	AMD B550
PC health monitoring	FAN, Temperature
Audio output channels	7.1 channels
Motherboard form factor	ATX
BIOS type	UEFI AMI
Cables included	SATA
Harmonized System (HS) code	84733020
Weight	1000 g

Weight and Dimensions

Depth	244 mm
Width	304 mm
Height	65 mm