MSI MAG B550M MORTAR WIFI User Manual

31
Overview of Components
PCI_E1~4: PCIe Expansion Slots
⚠
Important
∙ If you install a large and heavy graphics card, you need to use a tool such as MSI
Gaming Series Graphics Card Bolster to support its weight to prevent deformation of
the slot.
∙ For a single PCIe x16 expansion card installation with optimum performance, using
the PCI_E1 slot is recommended.
∙ When adding or removing expansion cards, always turn off the power supply and
unplug the power supply power cable from the power outlet. Read the expansion
card’s documentation to check for any necessary additional hardware or software
changes.
∙ PCI_E4 will be unavailable when an M.2 SSD is installed in the M2_2 slot.
M.2 slots and PCIe slots combination table
Slot Combination
M2_1 (CPU) PCIe SATA PCIe SATA
M2_2 (PCH) PCIe PCIe X X
PCI_E1 (CPU)    
PCI_E2 (PCH)    
PCI_E3 (PCH)    
PCI_E4 (PCH)    

PCI_E1: PCIe 3.0/ 4.0 x16 (CPU)
PCI_E4: PCIe 3.0 x4 (PCH)
PCI_E3: PCIe 3.0 x1 (PCH)
PCI_E2: PCIe 3.0 x1 (PCH)

MSI MAG B550M MORTAR WIFI Specifications

General

Form Factor	Micro ATX
Chipset	AMD B550
Socket	AM4
Memory Slots	4 x DIMM
Max Memory	128 GB
Audio	Realtek ALC1200 Codec
RGB Support	Mystic Light RGB
Memory Speed	Up to 4400 MHz (OC)
Storage Interface	6 x SATA 6Gb/s
USB Ports	1 x USB 3.2 Gen 2 Type-C, 1 x USB 3.2 Gen 2 Type-A, 2 x USB 2.0
Networking	Realtek RTL8125B 2.5G LAN
LAN	2.5Gbps
Wi-Fi	Wi-Fi 6 AX200
PCIe Slots	1 x PCIe 4.0 x16, 1 x PCIe 3.0 x16 (x4 mode), 1 x PCIe 3.0 x1