ASRock B860M Lightning WiFi

Specifications

  • Manufacturer: ASRock
  • Chipset: B860
  • Socket: LGA1851
  • Form Factor: Micro ATX
  • DIMM Slots: 4
  • Color: 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:3.21
Release Date:2026-03-09

1. Update Intel Microcode 0x1212. Update Intel ME version. (19.0.5.2175)SHA256: 6cdd6f64c05f8b48820aaf61d1890a73d7b1f9d493cfce1e4f24aa6bbd5b4f20

BIOS Release Notes Analysis

Launch Stability & Compatibility

The platform initializes with release v1.16, establishing baseline support for Intel Core Ultra 200S processors. Stability improves significantly in v1.18, which integrates Microcode 0x114 to resolve Processor Power Management (PPM) logic errors causing frame-time spikes, alongside fixes for the Auto Driver Installer function. Further refinement for non-K (65W) SKUs arrives in v1.18.AS01[Beta], utilizing Microcode 0x116 to enhance voltage regulation and reliability while updating the Intel Management Engine to version 19.0.0.1895.

Feature Maturity & Hardware Support

Memory performance advances in v1.19, where Microcode 0x117 enhances signal integrity for high-speed CUDIMM DDR5 modules and enables the DLRM state for storage power savings within the Intel Maintenance Release 1 (MR1) framework. Peripheral compatibility is addressed in v1.21[Beta], specifically resolving Bluetooth audio device conflicts and further optimizing memory training. Continued platform maturation occurs in v1.22, which implements Intel Maintenance Release 4 (MR4) and Microcode 0x11A alongside Management Engine firmware 19.0.5.2018.

Critical Security & Power Management

System hardening is prioritized in v2.04, which enables Pre-boot DMA Protection, VT-d, and IOMMU virtualization protocols to mitigate direct memory access attacks and enhance isolation. The firmware lifecycle extends to next-generation hardware in v2.06, updating the Management Engine and Microcode to support upcoming processor architectures and ensure forward compatibility with future Intel steppings.

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