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.

Resources

BIOS Update Notifications

Latest BIOS Version

Version:F11
Release Date:2026-02-04

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.