MSI PRO B650-S
Specifications
- Manufacturer: MSI
- 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.
Latest BIOS Version
- AGESA PI 1.2.0.3g updated. - Improved compatibility of the Ryzen 8000 series CPU. - Multiple OC solutions implemented.
BIOS Release Notes Analysis
Launch Stability & Compatibility
Initial firmware revisions focused on critical electrical safety and memory training baselines. Version 7E26v11 integrates AGESA 1.0.0.7a to hard-lock the SoC voltage at 1.3V, preventing physical thermal damage on Ryzen 7000X3D series processors. Memory support was expanded in v7E26v111[Beta] to include non-binary 24GB and 48GB DDR5 modules. Subsequent updates, specifically v7E26v13, implemented AGESA 1.0.0.7c to resolve boot failures with Samsung-based memory kits and improve ACPI S3 sleep state stability. Additionally, v7E26v12 stabilized system behavior when EXPO profiles are active and resolved intermittent Bluetooth device power cycling.
Feature Maturity & Hardware Support
Platform capabilities expanded to support Ryzen 8000 series APUs in v7E26v15 and Ryzen 9000 'Granite Ridge' processors in v7E26v1F via AGESA 1.2.0.0a. This update introduces Curve Shaper for granular voltage/frequency control and Memory OC OTF capabilities. Performance tuning features were refined in v7E26v1G2[Beta], which enables a one-click "TDP to 105W" mode, and v7E26v1H2[Beta] (AGESA 1.2.0.2b), which activates X3D Gaming Mode and Latency Killer to optimize CCD thread scheduling. Support for flagship Ryzen 9000X3D SKUs (9950X3D/9900X3D) was established in v7E26v1J (AGESA 1.2.0.3a), which also optimizes single-rank and dual-rank memory training in 2DPC configurations.
Critical Security & Power Management
Security hardening addresses multiple high-severity vulnerabilities across the lifecycle. Version 7E26v191[Beta] updates to AGESA 1.1.0.1 to mitigate the LogoFAIL exploit, while v7E26v1G2[Beta] integrates AGESA 1.2.0.1 to patch the Sinkclose SMM lock bypass vulnerability. Specific CVE patches include the resolution of CVE-2024-36877 in v7E26v1F and TPM security updates in v7E26v1L (AGESA 1.2.0.3e). Power management logic was corrected in v7E26v19 to resolve STAPM throttling issues on Ryzen 8000 processors. Furthermore, v7E26v1K restores the visibility of the AMD fTPM switch, and v7E26v1M4[Beta] optimizes the Secure Erase mechanism for storage maintenance.
ℹ️AI-synthesized summary derived from official changelogs and verified microcode specifications. Always verify with the manufacturer.
