MSI MEG B550 UNIFY User Manual

33
Overview of Components
PCIe bandwidth configuration table for PCIe & M.2 slots
The M2_2 and M2_3 slots can be used under two PCIe bandwidth modes: Chipset
mode (default) and CPU mode (by BIOS selection). In these two modes, they provide
different PCIe bandwidth for M2_2 and M2_3 slots, please refer the table below for
details.
Slot Chipset Mode CPU Mode
PCI_E1 @ 4.0/ 3.0 x16* @ 4.0/ 3.0 x8*
PCI_E2 — 3.0 x1 3.0 x1
PCI_E3 — 3.0 x1 3.0 x1
PCI_E4 — @ 3.0 x4 — @ 3.0 x4
M2_1 4.0/ 3.0 x4* 4.0/ 3.0 x4*
M2_2 3.0 x2 Empty 4.0/ 3.0 x4*
M2_3 3.0 x2** 4.0/ 3.0 x4*
/
**
M2_4 3.0 x4 Empty 3.0 x4 Empty

* PCIe/ M.2 specifications may vary depending on the CPU installed.
** The SATA5 and SATA6 ports will be unavailable when installing M.2 PCIe SSD into
M2_3. The SATA5 port will be unavailable when installing M.2 SATA SSD into M2_3.
⚠
Important
∙ Enabling CPU mode, please go to BIOS > SETTINGS > Advanced > PCI sub-system
Settings > PCI_E1 Lanes Configuration and configure the PCIe Lanes to x8/x4/x4 for
PCI_E1, M2_2 and M2_3 slots first. In CPU mode, the PCI_E1, M2_2 and M2_3 slots
share the same PCIe bandwidth.
∙ In CPU mode with AMD Ryzen
TM
5000 & 3000 series processors (not compatible with
AMD Ryzen
TM
5 3400G & Ryzen
TM
3 3200G) , if you install the MSI M.2 Xpander series
add-in card into PCI_E1 slot, only two M.2 slots of the add-in card are available.
∙ In CPU mode with AMD Ryzen
TM
4000-G series processors, if you install the MSI M.2
Xpander series add-in card into PCI_E1 slot, only one M.2 slot of the add-in card is
available.

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