The ASUS PRIME B650M-A AX6 is an ASUS PRIME series mainstream motherboard supporting AMD Ryzen 7000+ processors (AMD 600-series chipset) on the AM5 socket with DDR5 memory. It targets home office users and mainstream builders and provides a comprehensive feature set for its platform tier. BIOS updates deliver stability improvements, security patches, new processor compatibility, and platform optimizations.
Product released: October 1, 2022
Latest firmware version
Version 3854, released April 23, 2026
What's new in version 3854
• Update AGESA ComboAM5 PI 1.3.0.1.
Note: This BIOS version cannot be rolled back to previous versions.
Before running the USB BIOS Flashback tool, please rename the BIOS file (A5506.CAP) using BIOSRenamer.
Starting from AGESA ComboAM5 PI 1.3.0.0, ECC-UDIMM memory speed will be limited to 5200 MT/s when paired with 9000 series CPUs.