To Next Page

To Previous Page

UEFI BIOS

M-FLASH Menu

M-FLASH provides the way to update BIOS with a USB flash drive. Please download

the latest BIOS file that matches your motherboard model from MSI website, save the

BIOS file into your USB flash drive. And then follow the steps below to update BIOS.

1. Insert the USB flash drive that contains the update file into the computer.

2. Click on M-FLASH tab, a demand message will be prompted. Click on Yes to

reboot and enter the flash mode.

3. The system will enter the flash mode and a file selection menu will appear after

rebooting.

4. Select a BIOS file to perform the BIOS update process.

5. After the flashing process is 100% completed, the system will reboot

automatically.

Questions and Answers:

Need help?

Do you have a question about the MSI MAG B550M MORTAR WIFI and is the answer not in the manual?

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