Gigabyte B550M H (rev. 1.0)

Specifications

  • Manufacturer: Gigabyte
  • Chipset: B550
  • Socket: AM4
  • Form Factor: Micro ATX
  • DIMM Slots: 2
  • Color: Black / Silver

Resources

BIOS Update Notifications

Latest BIOS Version

Version:F18
Release Date:2025-10-29

Checksum : AE71 AMD AGESA ComboV2 1.2.0.F Update TPM-B FW for Raven2/ Picasso, Cezanne, Vermeer/ Matisse & Renoir CPUs Fix TPM2.0’s out-of-bounds read vulnerability (CVE-2025-2884)

BIOS Release Notes Analysis

Launch Stability & Compatibility

The platform launches with version F1 on AGESA 1.0.0.1, followed by update F2 which expands compatibility to Ryzen XT processors and patches SMM Callout Privilege Escalation vulnerabilities. Version F10 integrates AGESA 1.0.8.1 to enable support for Ryzen 5000 series CPUs. Connectivity and performance are addressed in version F12 (AGESA 1.1.0.0 D), which stabilizes USB 2.0 hub connections and introduces Re-size BAR support for AMD Smart Access Memory optimization.

Feature Maturity & Hardware Support

Mid-cycle firmware updates focus on architectural expansion and compliance. Version F13 enables Ryzen 5000 G-Series APUs via AGESA 1.2.0.3 B. Version F14 implements a Capsule BIOS structure and defaults fTPM to "Enabled" to meet Windows 11 requirements. Support for the Ryzen 7 5800X3D is added in version F15a (AGESA 1.2.0.6 B). Subsequent update F15 upgrades to AGESA 1.2.0.7, which resolves fTPM-induced system stuttering issues. Furthermore, version F16b integrates AGESA 1.2.0.8 to unlock native Curve Optimizer support for the 5800X3D processor.

Critical Security & Power Management

Recent updates prioritize hardening the platform against high-severity exploits. Version F17 (AGESA 1.2.0.B) mitigates the LogoFAIL image parsing vulnerability. Update F18d integrates AGESA 1.2.0.Cc to patch the Sinkclose SMM Lock Bypass. Version F18g (AGESA 1.2.0.E) addresses the microcode signature verification flaw CVE-2024-36347. Finally, version F18 (AGESA 1.2.0.F) resolves the TPM 2.0 out-of-bounds read vulnerability (CVE-2025-2884) and updates TPM firmware for Raven2 through Vermeer architectures.

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