MSI PRO B860-P WIFI

Specifications

  • Manufacturer: MSI
  • Chipset: B860
  • Socket: LGA1851
  • Form Factor: ATX
  • DIMM Slots: 4
  • Color: Silver / Black

BIOS Update Status

  • Microcode 0x117

    Contains Intel Maintainence Release 1.

  • Microcode 0x11A

    Performance and stability improvements with Intel Maintainence Release 4 (MR4).

  • Microcode 0x121

    Updates compatibility tables for future Intel Core Ultra processor steppings and improves system stability.

Resources

BIOS Update Notifications

Latest BIOS Version

Version:7E41v1A80
Release Date:2026-01-14

- Improve Memory compatibility. - Modify memory OC rule.

BIOS Release Notes Analysis

Launch Stability & Compatibility

Initial platform stability is established in v1A1, followed by critical architectural corrections in v1A2 which integrates Microcode 0x114. This update resolves Processor Power Management (PPM) logic errors to mitigate frame-time spikes and latency issues in gaming workloads. System coordination is further refined in v1A3 through Intel Planned Release 5 (PR5) support and Management Engine (ME) firmware 19.0.0.1854, ensuring synchronization with Intel Application Optimization (APO) and Dynamic Tuning Technology (DTT) drivers for optimized thermal and power management.

Feature Maturity & Hardware Support

Hardware support expands significantly in v1A32 and v1A4, which implement Microcode 0x116 to improve voltage regulation and reliability specifically for non-K Core Ultra SKUs. These versions also validate high-density memory configurations, enabling support for 256GB (4x 64GB) setups. Firmware maturity advances through v1A41 and v1A50, incorporating Intel Maintenance Release 1 (MR1) and ME firmware 19.0.5.1948 to stabilize system operations. Additionally, v1A50 introduces the Intel 200S Boost feature, optimizing processor performance profiles alongside fixes for ESA module communication and post-boot beep codes.

Critical Security & Power Management

Later updates focus on long-term architectural refinements, with v1A60 adopting Intel Maintenance Release 3 (MR3) to stabilize the platform for advanced turbo modes alongside Graphics Output Protocol (GOP) updates. Visual output and system security are addressed in v1A70, which resolves display setting conflicts, improves MultiMonitor support, and modifies security parameters. Final optimizations in v1A80 refine memory overclocking rules to enhance signal integrity and compatibility across diverse DRAM modules.

ℹ️AI-synthesized summary derived from official changelogs and verified microcode specifications. Always verify with the manufacturer.