Aimed at Xeon W-Series processors in Socket 2066, ASUS Pro WS C422-ACE is an ATX board on the Intel C422 chipset with eight DIMM slots for up to 512GB of registered or load-reduced DDR4 in quad channel. Three PCIe 3.0 x16 slots support NVIDIA 3-Way SLI and AMD 3-Way CrossFireX, while storage covers M.2 sockets, a U.2 connector and six SATA ports with Intel VROC. Dual Intel LAN and USB BIOS FlashBack are included.
Product released: October 1, 2018
Latest firmware version
Version 2201, released September 3, 2026
Last checked for updates: Oct 31, 2026 10:56 UTC
What's new in version 2201
1. Update ASUS DB and DBX for security improvement
Before running the USB BIOS Flashback tool, please rename the BIOS file (PWCA.CAP) using BIOSRenamer.
LatestUpdate has tracked 15 versions of ASUS Pro WS C422-ACE firmware, released between October 28, 2019 and September 3, 2026.
Version 2201 - September 3, 2026: 1. Update ASUS DB and DBX for security improvement Before running the USB BIOS Flashback tool, please rename the BIOS file (PWCA.CAP) using BIOSRenamer.
Version 2102 - March 30, 2026: 1.Improve system stability and performance 2.Update Intel microcode 3.Enhance overall system security. “Before BIOS update, please download Intel ME update too…
Version 2001 - January 3, 2025: 1.Intel ME FW updated to 11.12.97.2614. 2.Enhance system stability and compatibility. Before BIOS update, please download Intel ME update tool from ASUS suppor…
Version 1801 - June 7, 2024: 1. This update includes the patch for the LogoFAIL vulnerabilities. 2. Improve system stability. “Before BIOS update, please download Intel ME update tool from…
Version 1601 - September 14, 2023: 1. Recommended for vital update to mitigate the potential security vulnerabilities 2. Improve system stability “Before BIOS update, please download Intel ME up…
Version 1403 - July 12, 2022: 01. Improved system stability 02. Strengthened system security and robustness 03. Improved memory compatibility Before running the USB BIOS Flashback tool, ple…
Version 1302 - November 16, 2021: Update ME firmware to 11.12.86.1877 version Improve system stability. Before running the USB BIOS Flashback tool, please rename the BIOS file (PWCA.CAP) using…
Version 1004 - April 16, 2021: - Support Resize Bar function. - Update AURA FW - Update CPU microcode for Intel security issue Before running the USB BIOS Flashback tool, please rename the B…
Version 0901 - December 30, 2020: -Improved system stability -Improved system performance Before running the USB BIOS Flashback tool, please rename the BIOS file (PWCA.CAP) using BIOSRenamer.
Version 0702 - July 21, 2020: 1. Update ME FW version. 2. Improved system stability 3. Update Microcode for IPU 2020.1 Before running the USB BIOS Flashback tool, please rename the BIOS fil…
Version 0603 - April 9, 2020: update Microcode for Intel security. Before running the USB BIOS Flashback tool, please rename the BIOS file (PWCA.CAP) using BIOSRenamer.
Version 0505 - February 19, 2020: [E] Improve system performance and stability Before running the USB BIOS Flashback tool, please rename the BIOS file (PWCA.CAP) using BIOSRenamer.
Version 0504 - December 13, 2019: 1. Improve system performance. 2. Update to Intel’s latest microcode. Before running the USB BIOS Flashback tool, please rename the BIOS file (PWCA.CAP) using…
Version 0401 - October 30, 2019: Improve system performance and stability. - Improve DRAM stability - Show ACHI warning message in F1 POST message - Shorten system boot time. - Change the defa…
Aimed at Xeon W-Series processors in Socket 2066, ASUS Pro WS C422-ACE is an ATX board on the Intel C422 chipset with eight DIMM slots for up to 512GB of registered or load-reduced DDR4 in quad channel. Three PCIe 3.0 x16 slots support NVIDIA 3-Way SLI and AMD 3-Way CrossFireX, while storage covers M.2 sockets, a U.2 connector and six SATA ports with Intel VROC. Dual Intel LAN and USB BIOS FlashBack are included. It was originally released on October 1, 2018.
What is the latest firmware version of ASUS Pro WS C422-ACE?
The latest firmware version of ASUS Pro WS C422-ACE is 2201. It was released on September 3, 2026.
What changed in ASUS Pro WS C422-ACE firmware version 2201?
ASUS Pro WS C422-ACE firmware version 2201 includes the following changes: 1. Update ASUS DB and DBX for security improvement
Before running the USB BIOS Flashback tool, please rename the BIOS file (PWCA.CAP) using BIOSRenamer.
Where can I download the latest ASUS Pro WS C422-ACE firmware?
Details and download instructions for the latest ASUS Pro WS C422-ACE firmware (version 2201) are on ASUS's official release page: https://www.asus.com/motherboards-components/motherboards/workstation/pro-ws-c422-ace/helpdesk_bios/
How often does ASUS release firmware updates for ASUS Pro WS C422-ACE?
We have tracked 15 firmware versions of ASUS Pro WS C422-ACE. Based on historical patterns, updates are released approximately every 261 days.
When is the next ASUS Pro WS C422-ACE firmware update expected?
ASUS Pro WS C422-ACE was recently updated. Based on this product's update history, the next firmware update is expected between November 10, 2026 and May 8, 2027.
Is ASUS Pro WS C422-ACE still receiving firmware updates?
Yes, ASUS Pro WS C422-ACE received a firmware update within the last 3 months. The most recent version is 2201.