Asus TUF GAMING B650-PLUS WIFI

Specifications

  • Manufacturer: Asus
  • Chipset: B650
  • 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:3841
Release Date:2026-02-26

"1. AGESA updated to ComboAM5 PI_1.3.0.0a.2. Provide additional stability margin during high-frequency DDR5 training.3. Addresses potential boot failures and stability issues observed on certain Ryzen 9000 configurations.4. Resolves an issue where systems might unexpectedly prompt for a BitLocker recovery key during startup.Before running the USB BIOS Flashback tool, please rename the BIOS file (TGB650PW.CAP) using BIOSRenamer"

BIOS Release Notes Analysis

Launch Stability & Compatibility

Early firmware revisions prioritize electrical safety and memory training for the AM5 platform. Versions v1413 through v1616 implement critical voltage safeguards, hard-locking the VDDCR_SOC rail to a maximum of 1.30V to prevent thermal damage to Ryzen 7000X3D series processors via AGESA 1.0.0.7a. Memory compatibility is significantly expanded in v1601, enabling support for non-binary 24GB and 48GB DDR5 modules, while v1654 integrates AGESA 1.0.0.7c to resolve high-speed signal integrity issues. Initial enablement for Ryzen 8000G APUs is introduced in v1807 (AGESA 1.0.8.0), alongside TPM 2.0 security updates in v1409.

Feature Maturity & Hardware Support

Support for Ryzen 9000 "Granite Ridge" architecture is established in v2613 (AGESA 1.1.7.0) and optimized for inter-core latency in v3014 (AGESA 1.2.0.0a). Performance tuning features include the introduction of Turbo Game Mode in v3056 (AGESA 1.2.0.2a) to optimize thread scheduling, and AI Cache Boost in v3222 to support Ryzen 9950X3D/9900X3D processors. Memory density support reaches 256GB (4x64GB) in v3208, which also enables AEMP profiles for speeds up to 6600MT/s. Additionally, v3035 exposes the cTDP 105W control mode to allow user-defined thermal envelopes.

Critical Security & Power Management

Firmware hardening addresses multiple high-severity vulnerabilities and power management logic. Version v2214 (AGESA 1.1.0.1) patches the LogoFAIL exploit affecting image parsing during the DXE boot phase. The critical Sinkclose (SMM Lock Bypass) vulnerability is mitigated in v3035 (AGESA 1.2.0.1a), preventing ring -2 privilege escalation. Further security updates in v3201 resolve PeCoffLoader memory overflows and Microcode Signature Verification flaws. Power logic corrections include disabling STAPM throttling for Ryzen 8000 in v2413. Updates v3263 (AGESA 1.2.0.3e) and v3602 (AGESA 1.2.7.0) enforce irreversible security checkpoints, preventing rollback to older, vulnerable firmware revisions.

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