Biostar B550GTQ

Specifications

  • Manufacturer: Biostar
  • Chipset: B550
  • Socket: AM4
  • Form Factor: Micro ATX
  • DIMM Slots: 4
  • Color: Black

Resources

BIOS Update Notifications

Latest BIOS Version

Version:B55AS831.BST
Release Date:2025-08-31

1. This BIOS update includes a critical fTPM firmware upgrade, enhancing security and optimizing game compatibility. Before proceeding, Back Up Your BitLocker Recovery Key and suspend BitLocker encryption in your operating system to prevent potential boot issues. 2. AGESA ComboAM4v2 PI 1.2.0.F Update  ( Beta )

BIOS Release Notes Analysis

Launch Stability & Compatibility

The initial firmware lifecycle focuses on stabilizing the AM4 platform and preparing for the Ryzen 5000 "Vermeer" architecture. Following the launch release vB55AS617.BST, update vB55AS706.BST integrates AGESA Combov2 PI 1.0.0.2 to establish baseline system performance. Support for next-generation processors begins with vB55AS909.BST (AGESA 1.0.8.1), while vB55AS922.BST[Beta] adjusts the Frame Buffer (FB) size range to improve display compatibility. Full enablement for Ryzen 5000 series CPUs arrives in vB55ASB04.BST via AGESA 1.1.0.0C, followed by vB55ASB19.BST which refines general system compatibility and post-launch stability.

Feature Maturity & Hardware Support

Mid-cycle updates introduce critical performance features and resolve widespread platform errata. Version vB55AS204.BST updates to AGESA 1.2.0.0, enabling Resizable BAR support for Ryzen 3000 series processors. This is refined in vB55AS305.BST[Beta] (AGESA 1.2.0.1), which restores L3 Cache bandwidth performance degraded in the previous version. Connectivity stability is addressed in stages, starting with vB55AS427.BST (AGESA 1.2.0.2) and finalizing in vB55AS730.BST (AGESA 1.2.0.3c), which resolves USB connectivity dropouts and PCIe Gen 4 instability. Hardware support expands significantly with vB55AS314.BST (AGESA 1.2.0.6b), enabling the Ryzen 7 5800X3D with L3 V-Cache optimization. Furthermore, vB55AS516.BST (AGESA 1.2.0.7) eliminates fTPM Stuttering in Windows environments by correcting TPM key validation latency.

Critical Security & Power Management

Recent firmware prioritizes high-severity security mitigations and long-term maintenance. Version vB55ASC03.BST (AGESA 1.2.0.5) introduces stricter security measures, while vB55ASB06.BST updates to AGESA 1.2.0.B to mitigate the Inception speculative side-channel vulnerability. Security hardening continues in vB55AS830.BST[Beta] (AGESA 1.2.0.Cc), which patches the Sinkclose SMM lock bypass exploit. Update vB55AS626.BST integrates AGESA 1.2.0.E to address additional System Management Mode (SMM) vulnerabilities. The latest release, vB55AS831.BST[Beta] (AGESA 1.2.0.F), upgrades fTPM firmware to optimize Windows 11 compatibility and resolve persistence bugs with custom fan curves.

ℹ️AI-synthesized summary derived from official changelogs and verified microcode specifications. Always verify with the manufacturer.