ASUS Pro A520M-C II/CSM

Made by ASUS · firmware

ASUS Pro A520M-C II/CSM is the CSM (Corporate Stable Model) edition of the Pro A520M-C II, aimed at business deployments. Based on the AMD A520 chipset for Ryzen 5000, 4000 G and 3000 series desktop processors, it offers one M.2 slot at PCIe 3.0 x4, four SATA ports, a PCI slot and DisplayPort, D-Sub, DVI-D and HDMI outputs. Business features include an onboard TPM 2.0, anti-moisture coating and a COM port.

Product released: September 1, 2020

Latest firmware version

Version 3645, released September 15, 2026

Last checked for updates: Oct 31, 2026 05:58 UTC

What's new in version 3645

Improve system compatibility

Download firmware 3645

firmware version history

LatestUpdate has tracked 21 versions of ASUS Pro A520M-C II/CSM firmware, released between April 26, 2021 and September 15, 2026.

• Version 3645 - September 15, 2026: Improve system compatibility
• Version 3644 - August 27, 2026: 1. Update AGESA version to ComboV2 PI 1.2.0.12. 2. Mitigate fTPM vulnerabilities (CVE-2026-6726, CVE-2026-6727).
• Version 3641 - June 30, 2026: 1.Update AGESA version to ComboV2 PI 1.2.0.12. 2. Implemented security updates.
• Version 3636 - January 30, 2026: Improve system compatibility
• Version 3634 - September 24, 2025: This BIOS update for Ryzen™ 5000 G-Series /4000 G-Series /3000 G-Series /2000 G-Series systems includes a critical fTPM firmware upgrade, enhancing security an…
• Version 3631 - August 14, 2025: 1. Updated AGESA version to ComboV2 PI 1.2.0.F. 2. Implemented security updates.
• Version 3621 - April 1, 2025: 1. Updated AGESA version to ComboV2 PI 1.2.0.E. 2. Implemented security updates.
• Version 3612 - January 8, 2025: Improve system compatibility
• Version 3611 - November 4, 2024: 1. Updated AGESA to version ComboV2PI 1.2.0.Cc. 2. Resolved CPU exception when adjusting items like ""When system is in sleep, hibernate, or soft off states""…
• Version 3607 - April 4, 2024: Update AGESA version to ComboV2PI 1.2.0.Ca. Fix AMD processor vulnerabilities security.
• Version 3405 - January 8, 2024: 1.This update includes the patch for the LogoFAIL vulnerabilities 2.Support graphics card with M.2 storage
• Version 3402 - September 29, 2023: 1. Update AGESA version to ComboV2PI 1.2.0.B 2. Update AMD 5000 Series CPU fTPM version, please back up Bitlocker recovery key before updating this version BIOS
• Version 3205 - September 4, 2023: Recommended for vital update to mitigate the potential security vulnerabilities
• Version 3202 - August 4, 2023: 1. Update AGESA version to ComboV2PI 1.2.0.A 2. Mitigate the AMD potential security vulnerabilities for AMD Athlon™ processors and Ryzen™ processors 3. Improve…
• Version 3003 - March 14, 2023: 1. Update AGESA version to ComboV2PI 1208 2. Mitigate the AMD potential security vulnerabilities for AMD Athlon™ processors and Ryzen™ processors
• Version 2806 - December 12, 2022: Improve system compatibility
• Version 2803 - April 29, 2022: 1. Update AMD AM4 AGESA V2 PI 1.2.0.7 to support more Ryzen processors. 2. Fix AMD fTPM issue causes random stuttering.
• Version 2604 - March 11, 2022: 1. Update AMD AM4 AGESA V2 PI 1.2.0.6b 2. Improve system performance and stability 3. Improve system performance for AMD Ryzen 7 5800X3D
• Version 2423 - August 26, 2021: 1. Update AMD AM4 AGESA V2 PI 1.2.0.3 Patch C 2. Improve system performance
• Version 2403 - June 22, 2021: 1. Update AMD AM4 AGESA V2 PI 1.2.0.3 Patch A 2. Improve system stability
• Version 0305 - April 26, 2021

Update prediction

This product was recently updated. The next firmware update is expected between November 8, 2026 and February 8, 2027.

ASUS typically releases firmware updates for this product approximately every 65 days.

Official ASUS Pro A520M-C II/CSM product page