MSI B350 GAMING PLUS

Launch Stability & Compatibility

The B350 platform lifecycle begins with foundational stability improvements in version vM1, which resolves PCIe Hot-plug function failures and enhances early DDR4 memory training. Version vM2 integrates AGESA 1.0.0.6, a critical update for stabilizing Ryzen 1000 series memory controllers and expanding DRAM compatibility. Storage and peripheral support are addressed in vM3, which optimizes initialization for Intel 600P NVMe drives, reduces POST times, and enables "Above 4G Decoding" to support large-address-space PCIe devices. Further refinement arrives in vM4, utilizing AGESA 1.0.0.6b to maximize memory signal integrity.

Feature Maturity & Hardware Support

Mid-cycle firmware focuses on broadening processor support and refining I/O behavior. Version vM7 introduces AGESA 1.1.0.1 to enable Raven Ridge APUs, while vM9 and vMA implement AGESA 1.0.0.1a and 1.0.0.2a respectively to support upcoming architectures and resolve USB mouse and M.2 detection conflicts. Support extends to the Athlon 200GE in vMC, followed by the deployment of AGESA 1.0.0.6 in vMD, which finalizes Pinnacle Ridge stability and enables SATA hotplug functionality. Versions vME through vMF conclude the legacy support phase by optimizing compatibility for Raven Ridge and Bristol Ridge APUs prior to the shift toward ComboV2 architecture.

Critical Security & Power Management

Recent updates prioritize high-severity security mitigations and Windows 11 compliance. Version vMJ5[Beta] transitions to AGESA 1.2.0.7, which eliminates fTPM Stuttering caused by key validation latency and enables Secure Boot by default, though it necessitates the removal of Bristol Ridge support. Security hardening continues in vMJ6[Beta] with AGESA 1.2.0.A to address TPM out-of-bounds access risks, while vMJ9[Beta] patches vulnerability CVE-2024-36877. The critical Sinkclose SMM Lock Bypass exploit is mitigated in vMJA[Beta] via AGESA 1.2.0.Cc. Finally, vMJC[Beta] updates to AGESA 1.2.0.F, upgrading fTPM firmware to resolve anti-cheat compatibility issues and enhance system resilience.