Gigabyte B650M S2H (rev. 1.2)
Specifications
- Manufacturer: Gigabyte
- Chipset: B650
- Socket: AM5
- Form Factor: Micro ATX
- DIMM Slots: 2
- Color: Black / Gray
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.
Latest BIOS Version
Checksum: EDC5 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 platform launched with firmware vF2, establishing baseline functionality. Support for Ryzen 9000 (Zen 5) processors was introduced in vF30 via AGESA 1.1.7.0. Subsequent updates focused on architectural refinement, with vF31 integrating AGESA 1.2.0.0a to enable Curve Shaper technology, allowing for distinct undervolt curves based on thermal and frequency states, while simultaneously improving DDR compatibility.
Feature Maturity & Hardware Support
Firmware vF32c through vF32e implemented AGESA 1.2.0.2a to support next-generation X3D processors, introducing X3D Turbo Mode and optimizing thread scheduling to reduce latency. Version vF32f added Zen5 Gaming Optimizations alongside AGESA 1.2.0.2b. Support for Ryzen 9 9000X3D series processors was finalized in vF33a and vF33 via AGESA 1.2.0.3a, which also improved gaming performance for 2CCD Ryzen 7000 and 9000 CPUs and enhanced PCIe device compatibility.
Critical Security & Power Management
Security hardening began significantly with vF32a, which updated to AGESA 1.2.0.1a to mitigate the Sinkclose vulnerability (SMM Lock Bypass). Version vF33 addressed the AMD CPU microcode signature verification vulnerability (CVE-2024-36347). Further protections were applied in vF35 (AGESA 1.2.0.3e), which resolved the TPM out-of-bounds read vulnerability (CVE-2025-2884). Finally, vF38 integrated AGESA 1.2.8.0 to patch 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.