ASUS Pro A620AT-CSM is the CSM (Corporate Stable Model) edition of the Pro A620AT, a Thin Mini-ITX board measuring 17.0cm square for AMD AM5 Ryzen 9000, 8000 and 7000 processors on the A620A chipset. It takes two SO-DIMM slots of DDR5 up to 128GB with ECC support, one PCIe 4.0 x4 M.2 slot and two SATA ports. Business features include DASH LAN, an LVDS connector, a 19V DC input and a G-sensor.
Product released: July 1, 2023
Latest firmware version
Version 4004, released September 21, 2026
Last checked for updates: Oct 31, 2026 06:02 UTC
What's new in version 4004
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.
LatestUpdate has tracked 13 versions of ASUS Pro A620AT-CSM firmware, released between May 14, 2025 and September 21, 2026.
Version 4004 - 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 3886 - July 2, 2026: Updated AGESA ComboAM5 PI 1.3.0.1b Patch A to support the GNR Transparent Secure Memory Encryption (TSME) feature.
Version 3881 - June 29, 2026: 1.Update AGESA ComboAM5 PI 1.3.0.1b. 2.Add support for EXPO ULL memory profiles. 3.Optimize ECC-UDIMM memory performance.
Version 3854 - April 15, 2026: • Update AGESA ComboAM5 PI 1.3.0.1. Note: This BIOS version cannot be rolled back to previous versions.
Version 3844 - March 27, 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 3842 - 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 3827 - February 13, 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-compli…
Version 3603 - December 2, 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 versi…
Version 3278 - August 5, 2025: 1. Updated AGESA to ComboAM5 PI 1.2.0.3f. 2. Enhanced system performance, stability, device compatibility, and overclocking support.
Version 3269 - July 25, 2025: 1. Adjust the USB2 registers to improve compatibility 2. Resolve the Ezdeploy bug 3. Lengthen LVDS EEPROM write delay 4. BIOS Setup add Primary LVDS Display 5.…
Version 3263 - June 24, 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…
ASUS Pro A620AT-CSM is the CSM (Corporate Stable Model) edition of the Pro A620AT, a Thin Mini-ITX board measuring 17.0cm square for AMD AM5 Ryzen 9000, 8000 and 7000 processors on the A620A chipset. It takes two SO-DIMM slots of DDR5 up to 128GB with ECC support, one PCIe 4.0 x4 M.2 slot and two SATA ports. Business features include DASH LAN, an LVDS connector, a 19V DC input and a G-sensor. It was originally released on July 1, 2023.
What is the latest firmware version of ASUS Pro A620AT-CSM?
The latest firmware version of ASUS Pro A620AT-CSM is 4004. It was released on September 21, 2026.
What changed in ASUS Pro A620AT-CSM firmware version 4004?
ASUS Pro A620AT-CSM firmware version 4004 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.
Where can I download the latest ASUS Pro A620AT-CSM firmware?
Details and download instructions for the latest ASUS Pro A620AT-CSM firmware (version 4004) are on ASUS's official release page: https://www.asus.com/motherboards-components/motherboards/business/pro-a620at-csm/helpdesk_bios/
How often does ASUS release firmware updates for ASUS Pro A620AT-CSM?
We have tracked 13 firmware versions of ASUS Pro A620AT-CSM. Based on historical patterns, updates are released approximately every 50 days.
When is the next ASUS Pro A620AT-CSM firmware update expected?
Based on this product's update history, a firmware update for ASUS Pro A620AT-CSM is expected soon, between October 9, 2026 and November 20, 2026.
Is ASUS Pro A620AT-CSM still receiving firmware updates?
Yes, ASUS Pro A620AT-CSM received a firmware update within the last 3 months. The most recent version is 4004.