MSI B350M MORTAR ARCTIC

Launch Stability & Compatibility

Initial firmware releases focus on establishing platform stability and expanding memory support for the AM4 socket. Version vA2 integrates AGESA 1.0.0.4a to address early system instability. A series of updates, including vA3, vA4, and vA5, iteratively improve DDR4 memory compatibility, with vA5 implementing AGESA 1.0.0.6 to finalize support for Ryzen 1000 and 2000 series processors. Version vA6 introduces "Above 4G Decoding" to support large-address resource allocation and resolves detection issues with Intel 600P M.2 SSDs. Additionally, vA4 restores functionality for PCIe Hot-plug, and vA7 updates the codebase to AGESA 1.0.0.6b for further memory optimization.

Feature Maturity & Hardware Support

Mid-lifecycle updates prioritize expanding processor compatibility and peripheral connectivity. Version vAA updates the firmware to AGESA 1.1.0.1, enabling support for Raven Ridge APUs. Subsequent releases such as vAF add support for the Athlon 200GE, while vAG enables SATA hotplug capabilities and updates the codebase to AGESA 1.0.0.6. Versions vAH and vAI focus on stabilizing performance for Raven Ridge and legacy Bristol Ridge CPUs, ensuring broad compatibility across early AM4 processor generations before the codebase transition in later Beta versions.

Critical Security & Power Management

The latest Beta firmware addresses critical security vulnerabilities and modernizes the platform for Windows 11. Version vAM5[Beta] updates to AGESA 1.2.0.7, which resolves fTPM-induced stuttering, enables Secure Boot by default, and removes support for Bristol Ridge APUs to free up ROM space. Security patches continue in vAM6[Beta] with AGESA 1.2.0.A and a fix for TPM Out of Bounds Access. Version vAM7[Beta] mitigates CVE-2024-36877, while vAM8[Beta] integrates AGESA 1.2.0.Cc to resolve the Sinkclose SMM Lock Bypass vulnerability. Finally, vAMA[Beta] applies AGESA 1.2.0.F to upgrade fTPM firmware for improved stability with modern anti-cheat software.