MSI B350I PRO AC
Specifications
- Manufacturer: MSI
- Chipset: B350
- Socket: AM4
- Form Factor: Mini ITX
- DIMM Slots: 2
- Color: Brown / Black
Latest BIOS Version
- AGESA ComboAm4v2PI 1.2.0.F update. - Improved security by updating TPM firmware for better game compatibility. Attention: Before proceeding with the update, please back up your BitLocker recovery key. Failure to do so will likely result in a permanent inability to log in to the operating system after the update is complete.
BIOS Release Notes Analysis
Launch Stability & Compatibility
Initial post-launch firmware stabilizes memory training and PCIe device compatibility in v13, while simultaneously updating to AGESA 1.0.0.1a to prepare for Ryzen 2000 series processors. Storage and legacy OS support improve in v14 with M.2 and Windows 7 optimizations, followed by USB peripheral fixes and AGESA 1.0.0.2a integration in v15. The firmware matures through v16 with AGESA 1.0.0.4C, and v17 expands CPU support to the Athlon 200GE. Finalizing the early lifecycle, v19 and v1A refine compatibility for Raven Ridge and Bristol Ridge APUs before the platform shifts to modern AGESA architectures.
Feature Maturity & Hardware Support
A significant architectural shift occurs in v1E3[Beta], which updates the codebase to AGESA ComboAm4v2PI 1.2.0.7. This update resolves the widespread fTPM Stuttering issue affecting Windows performance and modifies default Secure Boot behavior, though it necessitates the removal of legacy Bristol Ridge APU support to accommodate the larger firmware payload. This version serves as the bridge to modern Ryzen 5000 series compatibility on the B350 chipset.
Critical Security & Power Management
Recent development focuses on hardening system security against sophisticated exploits. Update v1E4[Beta] integrates AGESA 1.2.0.A to patch TPM Out of Bounds Access vulnerabilities. Specific mitigation for CVE-2024-36877 is delivered in v1E5[Beta]. The firmware addresses the critical SMM Lock Bypass vulnerability, known as Sinkclose, via AGESA 1.2.0.Cc in v1E6[Beta]. Finally, v1E8[Beta] updates to AGESA 1.2.0.F, upgrading fTPM firmware to enhance compatibility with modern anti-cheat systems and Windows 11 requirements.
ℹ️AI-synthesized summary derived from official changelogs and verified microcode specifications. Always verify with the manufacturer.