MSI B850M GAMING PLUS WIFI
Specifications
- Manufacturer: MSI
- Chipset: B850
- Socket: AM5
- Form Factor: Micro ATX
- DIMM Slots: 4
- Color: Silver / Black
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-1.3.0.0 updated. - Implemented the anti-cheat mechanism. - Improved PCIe-based devices compatibility under certain CPU or system combinations.
BIOS Release Notes Analysis
System Stability & Architecture
The platform initializes with version v1A10. Significant architectural updates arrive in v1A20, which integrates AGESA 1.2.0.3e to patch the TPM Out-of-Bounds Read vulnerability (CVE-2025-2884) and refine voltage safety limits for X3D processors. This release also validates high-density memory configurations, enabling support for 256GB total system memory via 4x 64GB modules, and optimizes overclocking for Samsung 4Gx8 ICs. Version v1A21 updates the codebase to AGESA 1.2.0.3f to enforce additional security mitigations.
Performance Tuning & Latest Features
Version v1A24 improves general memory compatibility and optimizes the Secure Erase mechanism. Support for Ryzen 8000 series processors is refined in v1A26 via AGESA 1.2.0.3g. Recent updates v1A2B and v1A2C implement AGESA pre-1.3.0.0, providing preliminary support for the next major AM5 architecture revision while overhauling memory training algorithms and hardening system security.
ℹ️AI-synthesized summary derived from official changelogs and verified microcode specifications. Always verify with the manufacturer.