Gigabyte B650M D2H (rev. 1.0)

Specifications

  • Manufacturer: Gigabyte
  • Chipset: B650
  • Socket: AM5
  • Form Factor: Micro ATX
  • DIMM Slots: 2
  • Color: 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:F40a
Release Date:2026-03-11

Checksum: 6B0D Update AMD AGESA 1.3.0.0a for next gen Ryzen CPU performance optimized Fix DDR5 DRAM vulnerability issue (CVE-2025-6202) with mixed mode option

BIOS Release Notes Analysis

Launch Stability & Compatibility

The firmware lifecycle began with version F1, integrating AGESA 1.0.0.6 to implement early voltage restrictions on the VDDCR_SOC rail for platform safety. Subsequent updates focused on memory controller performance; version F2 updated to AGESA 1.0.0.7c, which improves DDR5 compatibility for high-speed modules (6400MT/s+) and resolves boot failures associated with specific memory kits. Support for Ryzen 8000G APUs was established in version F20 via AGESA 1.1.0.1, which also patched the critical LogoFAIL vulnerability in version F21 to prevent malicious boot logo execution. Additionally, version F23 (AGESA 1.1.0.2b) optimized APU performance by disabling STAPM defaults.

Feature Maturity & Hardware Support

Support for Ryzen 9000 "Granite Ridge" processors was introduced in version F30 with AGESA 1.1.7.0. Version F31 (AGESA 1.2.0.0a) enabled Curve Shaper technology, allowing for distinct undervolt curves across different temperature states. Gaming performance saw significant tuning in versions F32c through F32e, which integrated AGESA 1.2.0.2a to introduce X3D Turbo Mode, optimizing thread scheduling and CCD parking. This was further refined in version F32f with AGESA 1.2.0.2b, adding Zen5 Gaming Optimizations. Version F33a and F33b (AGESA 1.2.0.3a) expanded support to Ryzen 9000X3D processors and optimized performance for 2CCD configurations when paired with updated chipset drivers. Later updates, including version F36, added support for the AI TOP Utility.

Critical Security & Power Management

Security hardening is a primary focus of the later release cycle. Version F32a (AGESA 1.2.0.1a) mitigated the high-severity Sinkclose vulnerability (SMM Lock Bypass). Version F33 addressed the AMD CPU microcode signature verification vulnerability (CVE-2024-36347). Further hardening occurred in version F35 (AGESA 1.2.0.3e), which fixed the TPM 2.0 out-of-bounds read vulnerability (CVE-2025-2884). Finally, version F38 updated the firmware to AGESA 1.2.8.0 to support next-generation processors and patched the critical Hynix Rowhammer vulnerability (CVE-2025-6202) affecting specific DDR5 modules.

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