MSI MAG X870E TOMAHAWK WIFI

Specifications

  • Manufacturer: MSI
  • Chipset: X870
  • Socket: AM5
  • Form Factor: ATX
  • DIMM Slots: 4
  • Color: Black / Green

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.

Resources

BIOS Update Notifications

Latest BIOS Version

Version:7E59v2AB0
Release Date:2026-04-15

- Fix AC Power Loss function fail. - Fix LAN boot missing in Boot Override when IPv4/IPv6 enabled.

BIOS Release Notes Analysis

Launch Stability & Compatibility

The initial firmware release v2A1 established the platform baseline for the X870 chipset. Subsequent update v2A2 stabilizes hardware monitoring telemetry and refines early memory training algorithms to ensure boot reliability. Version v2A3 addresses critical PCIe signal integrity issues, resolving speed drops and device loss on Gen3 interfaces. Further stability patches in v2A90 correct lingering hardware monitor anomalies to ensure accurate voltage and thermal reporting.

Feature Maturity & Hardware Support

Updates v2A33 and v2A4 integrate AGESA 1.2.0.3a to enable support for Ryzen 9 9950X3D and 9900X3D processors, alongside optimizations for Single Rank and Dual Rank memory in 1DPC/2DPC configurations. Firmware v2A52 and v2A6 upgrade the codebase to AGESA 1.2.0.3c, preparing the system for high-density memory modules. This capability is fully realized in versions v2A73 and v2A80 (AGESA 1.2.0.3e), which validate 256GB total system capacity via 4x64GB DIMMs and optimize overclocking profiles for Samsung 4Gx8 ICs. Version v2A91 further updates the backend to AGESA 1.2.0.3g to improve interoperability with Ryzen 8000 series CPUs.

Critical Security & Power Management

Versions v2A73 and v2A80 incorporate AGESA 1.2.0.3e, which mitigates the TPM Out-of-Bounds Read vulnerability (CVE-2025-2884) and refines voltage safety limits for X3D processors. Updates v2A83 and v2A84 optimize the Secure Erase mechanism to ensure reliable data sanitation on NVMe storage. The firmware roadmap concludes with versions v2A94 through v2AA0, which implement AGESA pre-1.3.0.0 to provide preliminary support for the next major AM5 architecture revision, featuring enhanced security hardening and restoring the BIOS UEFI/CSM Mode toggle.

ℹ️AI-synthesized summary derived from official changelogs and verified microcode specifications. Always verify with the manufacturer.