MSI B450I GAMING PLUS AC

Launch Stability & Compatibility

Initial firmware development focuses on stabilizing first-generation Ryzen architecture and preparing for the Zen 2 transition. Version vA1 updates the codebase to AGESA 1.0.0.4C to improve memory compatibility, while vA2 integrates AGESA 1.0.0.6 to mature support for Summit Ridge and Pinnacle Ridge processors alongside Raven Ridge compatibility improvements. The transition to Ryzen 3000 series support occurs in vA7, which implements AGESA ComboPI 1.0.0.3ab and migrates the interface to the GSE-Lite Click BIOS mode to accommodate the larger CPU microcode database.

Feature Maturity & Hardware Support

Performance tuning for Ryzen 3000 processors drives mid-cycle updates, specifically vAA, which deploys AGESA ComboPI 1.0.0.3abba to resolve boost frequency deficits on Zen 2 CPUs. Version vAB further optimizes system initialization time and PCIe device compatibility via AGESA 1.0.0.4 Patch B. Significant platform stability improvements arrive in vAG, which updates the firmware to AGESA ComboAm4v2PI 1.2.0.7 to resolve the widespread fTPM Stuttering issue affecting Windows performance and enables Secure Boot by default.

Critical Security & Power Management

Recent development prioritizes security mitigation against high-severity vulnerabilities. Version vAH4[Beta] integrates AGESA 1.2.0.Ca to address CVE-2024-36877 and mitigate the LogoFAIL image parsing exploit. This is followed by vAH5[Beta], which updates to AGESA 1.2.0.Cc to patch the Sinkclose SMM Lock Bypass vulnerability. The latest update, vAH7[Beta], deploys AGESA 1.2.0.F to upgrade TPM firmware for enhanced anti-cheat compatibility in Windows 11 environments.