ASUS ROG STRIX B850-A GAMING WIFI is built on the AMD B850 chipset with an AM5 socket for Ryzen 9000, 8000 and 7000 Series processors and four DDR5 slots for up to 256GB. Its primary PCIe 5.0 x16 slot uses Q-Release Slim, a second PCIe 4.0 x16 slot runs at x4, and video comes from DisplayPort 1.4 and HDMI 2.1 outputs.
Product released: January 1, 2025
Latest firmware version
Version 1804, released September 21, 2026
Last checked for updates: Oct 31, 2026 23:26 UTC
What's new in version 1804
1. Update to AGESA ComboAM5 PI 1.3.0.1d.
2. Enhanced memory performance, system stability, and compatibility with CXMT memory chips for improved low-latency operation.
Before running the USB BIOS Flashback tool, please rename the BIOS file (A5597.CAP) using BIOSRenamer.
LatestUpdate has tracked 20 versions of ASUS ROG STRIX B850-A GAMING WIFI firmware, released between September 24, 2024 and September 21, 2026.
Version 1804 - September 21, 2026: 1. Update to AGESA ComboAM5 PI 1.3.0.1d. 2. Enhanced memory performance, system stability, and compatibility with CXMT memory chips for improved low-latency op…
Version 1686 - July 2, 2026: Updated AGESA ComboAM5 PI 1.3.0.1b Patch A to support the GNR Transparent Secure Memory Encryption (TSME) feature. Before running the USB BIOS Flashback tool,…
Version 1681 - June 22, 2026: 1.Update AGESA ComboAM5 PI 1.3.0.1b. 2.Add support for EXPO ULL memory profiles. 3.Optimize ECC-UDIMM memory performance. Before running the USB BIOS Flashback…
Version 1670 - April 29, 2026: New memory profile support. Before running the USB BIOS Flashback tool, please rename the BIOS file (A5597.CAP) using BIOSRenamer.
Version 1654 - April 27, 2026: "• Update AGESA ComboAM5 PI 1.3.0.1. • Improve compatibility and performance for Ryzen 9 9950X3D2 Dual Edition processors. Note: This BIOS version cannot be ro…
Version 1644 - March 23, 2026: "1. AGESA updated to ComboAM5 PI_1.3.0.0a. 2. Provide additional stability margin during high-frequency DDR5 training. 3. Addresses potential boot failures and…
Version 1642 - February 26, 2026: 1. AGESA updated to ComboAM5 PI_1.3.0.0a. 2. Provide additional stability margin during high-frequency DDR5 training. 3. Addresses potential boot failures and…
Version 1627 - February 11, 2026: "1. AGESA updated to ComboAM5 PI_Pre1.3.0.0 for better security. 2. Enhanced system performance and stability. 3. Improved memory compatibility for JEDEC-compl…
Version 1402 - December 8, 2025: "1.AGESA updated to ComboAM5 PI 1.2.7.0. 2.Improves compatibility with various CPUs and devices. Note: This BIOS version cannot be rolled back to previous vers…
Version 1087 - September 30, 2025: Updated AGESA to ComboAM5 PI 1.2.0.3g. Before running the USB BIOS Flashback tool, please rename the BIOS file (A5597.CAP) using BIOSRenamer.
Version 1078 - July 22, 2025: 1. Updated AGESA to ComboAM5 PI 1.2.0.3f. 2. Enhanced system performance, stability, device compatibility, and overclocking support. Before running the USB BIO…
Version 1066 - June 18, 2025: 1. Updated AGESA to ComboAM5 PI 1.2.0.3e for upcoming CPU compatibility. 2. Enhanced system performance and stability. 3. Important: This update is irreversibl…
Version 1028 - April 30, 2025: This update enhances compatibility with high-capacity memory modules and improves overall system performance. Before running the USB BIOS Flashback tool, pleas…
Version 1022 - March 7, 2025: 1. Enhanced system performance with support for 9950X3D and 9900X3D processors. 2. Included AI Cache Boost to enhance performance and compute power when using…
Version 1006 - February 27, 2025: 1.Updated AGESA to PI 1.2.0.3a Patch A. Please update the chipset driver to version 7.01.08.129 or newer to enhance gaming performance in select games. 2.Impro…
Version 1001 - January 16, 2025: 1.Updated AGESA to ComboAM5 PI 1.2.0.3. Please also update the chipset driver to version 7.01.08.129 or newer to enhance gaming performance for select games. 2…
Version 0825 - December 19, 2024: SHA256: FAEFA101FE96D1BC61ADB349E914D224F5EB1772CEE1803F581907E31C2F1112 1.Updated AMD AGESA to version 1.2.0.2b 2.Fixed a few fan-related bugs and improved ov…
Version 0816 - November 6, 2024: 1. Include Turbo Game Mode: Enhance performance in certain games. 2. Update AGESA Version to Combo AM5 PI 1.2.0.2a: Enhance compatibility and performance. Befo…
Version 0806 - October 22, 2024: 1.Updated to AMD AGESA PI 1.2.0.2. 2.Phase in AMD cTDP to 105W option for particular processors. Before running the USB BIOS Flashback tool, please rename the…
Version 0403 - September 24, 2024: First Release Before running the USB BIOS Flashback tool, please rename the BIOS file (A5597.CAP) using BIOSRenamer.
Update prediction
A firmware update is expected soon, between October 11, 2026 and November 15, 2026.
ASUS typically releases firmware updates for this product approximately every 47 days.
ASUS ROG STRIX B850-A GAMING WIFI is built on the AMD B850 chipset with an AM5 socket for Ryzen 9000, 8000 and 7000 Series processors and four DDR5 slots for up to 256GB. Its primary PCIe 5.0 x16 slot uses Q-Release Slim, a second PCIe 4.0 x16 slot runs at x4, and video comes from DisplayPort 1.4 and HDMI 2.1 outputs. It was originally released on January 1, 2025.
What is the latest firmware version of ASUS ROG STRIX B850-A GAMING WIFI?
The latest firmware version of ASUS ROG STRIX B850-A GAMING WIFI is 1804. It was released on September 21, 2026.
What changed in ASUS ROG STRIX B850-A GAMING WIFI firmware version 1804?
ASUS ROG STRIX B850-A GAMING WIFI firmware version 1804 includes the following changes: 1. Update to AGESA ComboAM5 PI 1.3.0.1d.
2. Enhanced memory performance, system stability, and compatibility with CXMT memory chips for improved low-latency operation.
Before running the USB BIOS Flashback tool, please rename the BIOS file (A5597.CAP) using BIOSRenamer.
Where can I download the latest ASUS ROG STRIX B850-A GAMING WIFI firmware?
Details and download instructions for the latest ASUS ROG STRIX B850-A GAMING WIFI firmware (version 1804) are on ASUS's official release page: https://rog.asus.com/motherboards/rog-strix/rog-strix-b850-a-gaming-wifi/helpdesk_bios/
How often does ASUS release firmware updates for ASUS ROG STRIX B850-A GAMING WIFI?
We have tracked 20 firmware versions of ASUS ROG STRIX B850-A GAMING WIFI. Based on historical patterns, updates are released approximately every 47 days.
When is the next ASUS ROG STRIX B850-A GAMING WIFI firmware update expected?
Based on this product's update history, a firmware update for ASUS ROG STRIX B850-A GAMING WIFI is expected soon, between October 11, 2026 and November 15, 2026.
Is ASUS ROG STRIX B850-A GAMING WIFI still receiving firmware updates?
Yes, ASUS ROG STRIX B850-A GAMING WIFI received a firmware update within the last 3 months. The most recent version is 1804.