Gigabyte B850M C
Specifications
- Manufacturer: Gigabyte
- Chipset: B850
- Socket: AM5
- Form Factor: Micro ATX
- DIMM Slots: 4
- 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 : 864A Improve system compatibility for BitLocker when using a dGPU card and LED lighting function.
BIOS Release Notes Analysis
System Stability & Architecture
Version F1 establishes the firmware baseline by integrating AGESA 1.2.0.3e PatchA, which enables support for new processors and patches the TPM Out-of-Bounds Read vulnerability (CVE-2025-2884). This update also resolves the AMD CPU microcode signature verification issue (CVE-2024-36347) and improves initial memory compatibility. Subsequent update F2 advances the architecture to AGESA 1.2.0.3g, enabling the AI TOP Utility v4.1.1 and enforcing Secure Boot as the default setting to prevent unauthorized boot loaders.
Performance Tuning & Latest Features
Version F3 delivers general system compatibility refinements. The most recent update, version F4, upgrades the platform to AGESA 1.2.8.0 to prepare for next-generation Ryzen processors. This release is critical for memory security, as it mitigates the Hynix Rowhammer vulnerability (CVE-2025-6202) found in specific SK Hynix DDR5 modules, while simultaneously enhancing broader memory compatibility.
ℹ️AI-synthesized summary derived from official changelogs and verified microcode specifications. Always verify with the manufacturer.