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Made by ASUS
The ASUS PRIME B840-PLUS WIFI-CSM 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: March 1, 2025
Version 1670, released April 29, 2026
Verified by LatestUpdate: June 18, 2026
New memory profile support. Before running the USB BIOS Flashback tool, please rename the BIOS file (A5618.CAP) using BIOSRenamer.
A firmware update was expected by June 28, 2026 but has not yet been released.
ASUS typically releases firmware updates for this product approximately every 22 days.
Official ASUS PRIME B840-PLUS WIFI-CSM product page
The ASUS PRIME B840-PLUS WIFI-CSM 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 March 1, 2025.
The latest firmware version for the ASUS PRIME B840-PLUS WIFI-CSM is 1670. It was released on April 29, 2026.
ASUS PRIME B840-PLUS WIFI-CSM firmware version 1670 includes the following changes: New memory profile support. Before running the USB BIOS Flashback tool, please rename the BIOS file (A5618.CAP) using BIOSRenamer.
To update the ASUS PRIME B840-PLUS WIFI-CSM 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.
Details and download instructions for the latest ASUS PRIME B840-PLUS WIFI-CSM firmware (version 1670) are on ASUS's official release page: https://www.asus.com/motherboards-components/motherboards/csm/prime-b840-plus-wifi-csm/helpdesk_bios/
You can track ASUS PRIME B840-PLUS WIFI-CSM 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.
We have tracked 16 firmware versions for the ASUS PRIME B840-PLUS WIFI-CSM. Based on historical patterns, updates are released approximately every 22 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.
Based on the ASUS PRIME B840-PLUS WIFI-CSM's historical update patterns, a firmware update was expected by June 28, 2026 but has not yet been released. This may indicate an upcoming release or a change in the product's update schedule.
Yes, the ASUS PRIME B840-PLUS WIFI-CSM received a firmware update within the last 3 months. The most recent version is 1670.
The ASUS PRIME B840-PLUS WIFI-CSM is manufactured by ASUS. Visit the official product page for more information.