MSI MAG B850M Mortar WiFi
Motherboards · MSI
Last checked
Latest Firmware
Version 7E61v1A66
Released
15.5 MB
Update track record
- releases tracked since 2025
- 15
- typical gap between releases
- ~5 weeks
- since the latest release
- 17 days
- security-related releases · latest 2025-07-18
- 3
Get Firmware Update Notifications
Get notified when new firmware is released for this device.
Firmware History
7E61v1A66
Latest- AGESA 1.3.0.1c updated. - Optimized for the CXSH memory chip in Memory Try It! inside the BIOS.
Download from MSI (opens in new tab)7E61v1A63
- AGESA PI-1.3.0.1b Patch A updated. - TSME (Transparent Secure Memory Encryption) enabling with the Ryzen 9000 series CPU.
Download from MSI (opens in new tab)
Why Keep Your Firmware Updated
Motherboard BIOS/UEFI firmware is essential for hardware initialization and CPU compatibility. Updates often include microcode patches for security vulnerabilities, support for newer processors and memory, and stability improvements. Always use a UPS or ensure stable power during BIOS updates — an interrupted flash can render the board unbootable.