Gigabyte B850 AI TOP
Specifications
- Manufacturer: Gigabyte
- Chipset: B850
- Socket: AM5
- Form Factor: ATX
- DIMM Slots: 4
- 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.
Latest BIOS Version
Checksum : 181F Improve system compatibility for BitLocker when using a dGPU card and LED lighting function.
BIOS Release Notes Analysis
Launch Stability & Compatibility
The B850 platform launched with firmware vF1, integrating AGESA 1.2.0.1a to enable a one-click 65W-to-105W TDP mode for dynamic CPU performance scaling. This initial release also mitigated the high-severity Sinkclose vulnerability (SMM Lock Bypass) to prevent ring -2 privilege escalation. Stability was further refined in vF3, which updated the codebase to AGESA 1.2.0.2b, patching critical SMM vulnerabilities (AMD-SB-7027) and optimizing system behavior during sleep state transitions.
Feature Maturity & Hardware Support
Support for Ryzen 9 9000X3D series processors was introduced in vF4a[Beta] via AGESA 1.2.0.3a, which also optimized cache hierarchy for 2CCD Ryzen 9000 CPUs when paired with Chipset Driver 7.01.08.129. PCIe compatibility was enhanced in vF5b[Beta], while high-density memory configurations received significant updates in vF6b[Beta], enabling support for 48GB and 64GB DIMM modules. The memory training algorithms were finalized in vF6 following the integration of AGESA 1.2.0.3b PatchC.
Critical Security & Power Management
Firmware vF7 implemented AGESA 1.2.0.3e to resolve the TPM Out-of-Bounds Read vulnerability (CVE-2025-2884) and mitigate the AMD CPU microcode signature verification flaw (CVE-2024-36347). System management capabilities were expanded in vF8 with support for the AI TOP Utility v4.1.1. The lifecycle concluded with vF10, which integrated AGESA 1.2.8.0 to prepare for next-generation Ryzen 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.
