MSI B850 MLG EDITION
Specifications
- Manufacturer: MSI
- Chipset: B850
- Socket: AM5
- Form Factor: ATX
- DIMM Slots: 4
- Color: Black / Red
BIOS Update Status
- AGESA 1.2.0.3C
Improves high-density memory compatibility, allowing stable operation of 4x DIMM configurations and 256GB total capacity.
- AGESA 1.2.7.0
Major enablement patch for next-generation 2026 processors; updates the PSP firmware and improves USB compatibility.
- AGESA 1.3.0.0
Preliminary support for the next major AM5 architecture revision; includes significant security hardening and memory training overhauls.
Latest BIOS Version
- AGESA PI pre-1.3.0.0 updated. - Enable the "BIOS UEFI/CSM Mode" option.
BIOS Release Notes Analysis
BIOS Updates
The firmware lifecycle for the B850 MLG EDITION begins with version v7E62v3A10, which establishes the initial platform baseline. Subsequent development in version v7E62v3A13 updates the codebase to AGESA 1.2.0.3g, specifically targeting and resolving compatibility constraints with Ryzen 8000 series processors. The most recent update, version v7E62v3A18, integrates AGESA pre-1.3.0.0; this firmware introduces preliminary support for the next major AM5 architecture revision and incorporates the security hardening and memory training overhauls native to the 1.3.0.0 logic.
ℹ️AI-synthesized summary derived from official changelogs and verified microcode specifications. Always verify with the manufacturer.