Biostar B450MHP

Specifications

  • Manufacturer: Biostar
  • Chipset: B450
  • Socket: AM4
  • Form Factor: Micro ATX
  • DIMM Slots: 2
  • Color: Black / Silver

Resources

BIOS Update Notifications

Latest BIOS Version

Version:B45NS831.BSS
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

BIOS Release Notes Analysis

System Stability & Architecture

The firmware lifecycle for the B450MHP begins with critical latency optimizations in version B45NS505.BSS, which integrates AGESA 1.2.0.7 to resolve fTPM Stuttering issues affecting Windows 10 and 11 environments. Architectural security is significantly hardened in version B45NS905.BSS via AGESA 1.2.0.B, which mitigates the Inception speculative side-channel vulnerability (CVE-2023-20569) for Zen 2 and Zen 3 processors. Intermediate maintenance in version B45NS510.BSS further stabilizes the platform, addressing general system reliability and hardware compatibility prior to major security overhauls.

Performance Tuning & Latest Features

Later updates focus on closing high-severity security gaps and refining platform behavior. Version B45NS819.BSS implements AGESA 1.2.0.Cc to patch the Sinkclose vulnerability, preventing System Management Mode (SMM) lock bypass exploits. Security maintenance continues in version B45NS603.BSS with AGESA 1.2.0.E, which addresses specific SMM vulnerabilities (AMD-SB-7027). The most recent update, version B45NS831.BSS, advances the codebase to AGESA 1.2.0.F and includes a mandatory fTPM firmware upgrade to enhance Windows 11 Anti-Cheat compatibility, building upon the general performance improvements introduced in version B45NS417.BSS.

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