Gigabyte B650M C (rev. 1.0)

Specifications

  • Manufacturer: Gigabyte
  • Chipset: B650
  • Socket: AM5
  • Form Factor: Micro ATX
  • DIMM Slots: 4
  • Color: Brown / 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.

Resources

BIOS Update Notifications

Latest BIOS Version

Version:F40
Release Date:2026-02-04

Checksum : 0F62 Improve system compatibility for BitLocker when using a dGPU card and LED lighting function.

BIOS Release Notes Analysis

Launch Stability & Compatibility

Early firmware revisions established baseline stability for the AM5 platform, starting with version vF5 which integrates AGESA 1.0.0.5 C to optimize performance for Ryzen 7000X3D series processors. A critical safety update in vF6 implements a hard 1.3V limit on the SoC voltage rail to prevent physical thermal damage to X3D CPUs, while simultaneously enabling support for high-density 24GB and 48GB non-binary DDR5 modules. Security is addressed in vF7, which resolves vulnerabilities in the download assistant reported by Eclypsium Research. Furthermore, version vF9 updates the codebase to AGESA 1.0.0.7 c, significantly improving high-speed DDR5 overclocking capabilities and memory training routines.

Feature Maturity & Hardware Support

Mid-cycle updates focus on next-generation architecture support and major security hardening. Version vF21 patches the critical LogoFAIL vulnerability via AGESA 1.1.0.1, preventing malicious boot logo execution. Support for Ryzen 9000 "Granite Ridge" processors is enabled in vF30 (AGESA 1.1.7.0), followed by vF32a which mitigates the high-severity Sinkclose (SMM Lock Bypass) vulnerability. Performance tuning for X3D chips is refined in vF32c and vF32d, which introduce X3D Turbo Mode and update AGESA to 1.2.0.2a to optimize thread scheduling and reduce inter-core latency.

Critical Security & Power Management

Later firmware revisions target deep-level security and future architecture compatibility. Version vF33 (AGESA 1.2.0.3a) resolves CVE-2024-36347 regarding microcode signature verification and optimizes gaming performance for dual-CCD Ryzen 7000 CPUs. The update pipeline addresses a TPM out-of-bounds read vulnerability (CVE-2025-2884) in vF35 (AGESA 1.2.0.3e). Finally, vF39 prepares the motherboard for next-generation processors via AGESA 1.2.8.0 and patches the critical Hynix Rowhammer vulnerability (CVE-2025-6202) affecting specific DDR5 memory modules.

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