Gigabyte B650M D2H (rev. 1.1)

Launch Stability & Compatibility

The firmware baseline is established in vFB, which integrates AGESA 1.0.0.7c to stabilize high-speed DDR5 modules and resolve boot failures on Samsung-based memory kits. Security hardening is prioritized in vFA1, which updates the codebase to AGESA 1.1.0.1 to mitigate the LogoFAIL vulnerability affecting the DXE boot phase. Support for Ryzen 8000 series APUs is formalized in vFA3 via AGESA 1.1.0.2b, which also disables STAPM by default to optimize thermal management. Initial compatibility for next-generation Ryzen 9000 processors is introduced in vFB1 through AGESA 1.1.7.0 Patch A, laying the groundwork for Zen 5 architecture support.

Feature Maturity & Hardware Support

Performance tuning for the Zen 5 architecture arrives in vFB2, utilizing AGESA 1.2.0.0a to enable Curve Shaper for granular voltage-frequency control. The vFB3d update implements AGESA 1.2.0.2a to introduce X3D Turbo Mode, optimizing thread scheduling and CCD parking logic for gaming workloads. This logic is further refined in vFB3g (AGESA 1.2.0.2b) with specific Zen5 Gaming Optimizations. High-density memory support and inter-core latency fixes for 2CCD Ryzen 9000X3D processors are delivered in vFB3i and vFB3j via AGESA 1.2.0.3a Patch A, which also enhances PCIe device compatibility.

Critical Security & Power Management

Critical security patches address high-severity CVEs throughout the lifecycle. vFB3a integrates AGESA 1.2.0.1a to resolve the Sinkclose SMM Lock Bypass vulnerability. Firmware vFB6 updates to AGESA 1.2.0.3e, mitigating the TPM out-of-bounds read flaw (CVE-2025-2884) and hardening microcode signature verification (CVE-2024-36347). Extended support for local AI workloads is enabled in vFB7 via the AI TOP Utility. Finally, vFB9 incorporates AGESA 1.2.8.0 to fix the critical Hynix Rowhammer vulnerability (CVE-2025-6202) affecting specific DDR5 modules.