The ASUS PRIME B850M-A is an ASUS PRIME series mainstream motherboard supporting AMD Ryzen 7000+ processors (AMD 800-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: January 1, 2025
Latest firmware version
Version 1670, released April 29, 2026
Verified by LatestUpdate: June 18, 2026
What's new in version 1670
New memory profile support.
Before running the USB BIOS Flashback tool, please rename the BIOS file (A5678.CAP) using BIOSRenamer
The ASUS PRIME B850M-A is an ASUS PRIME series mainstream motherboard supporting AMD Ryzen 7000+ processors (AMD 800-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. It was originally released on January 1, 2025.
What is the latest firmware version for the ASUS PRIME B850M-A?
The latest firmware version for the ASUS PRIME B850M-A is 1670. It was released on April 29, 2026.
What changed in ASUS PRIME B850M-A firmware version 1670?
ASUS PRIME B850M-A firmware version 1670 includes the following changes: New memory profile support.
Before running the USB BIOS Flashback tool, please rename the BIOS file (A5678.CAP) using BIOSRenamer
How do I update the ASUS PRIME B850M-A firmware?
To update the ASUS PRIME B850M-A firmware, download the latest version (1670) from ASUS's website. Follow ASUS's installation instructions, which typically involve copying the firmware file to a memory card or connecting via USB. You can download the latest firmware from ASUS's support page.
Where can I download the latest ASUS PRIME B850M-A firmware?
Details and download instructions for the latest ASUS PRIME B850M-A firmware (version 1670) are on ASUS's official release page: https://www.asus.com/motherboards-components/motherboards/prime/prime-b850m-a/helpdesk_bios/
How do I check for ASUS PRIME B850M-A firmware updates?
You can track ASUS PRIME B850M-A firmware updates automatically on LatestUpdate.io. We monitor ASUS's releases and notify you when new firmware versions are available, so you never miss an update.
How often does ASUS release firmware updates for the ASUS PRIME B850M-A?
We have tracked 12 firmware versions for the ASUS PRIME B850M-A. Based on historical patterns, updates are released approximately every 21 days. ASUS releases updates to fix bugs, improve performance, and add new features. Track this product on LatestUpdate.io to be notified of future releases.
Is the ASUS PRIME B850M-A firmware update overdue?
Based on the ASUS PRIME B850M-A's historical update patterns, a firmware update was expected by June 20, 2026 but has not yet been released. This may indicate an upcoming release or a change in the product's update schedule.
Is the ASUS PRIME B850M-A still receiving firmware updates?
Yes, the ASUS PRIME B850M-A received a firmware update within the last 3 months. The most recent version is 1670.
Who makes the ASUS PRIME B850M-A?
The ASUS PRIME B850M-A is manufactured by ASUS. Visit the official product page for more information.