To update the BIOS on your ECS H61H2-MV motherboard, you must first identify your specific PCB version (V1.0, V2.0, or V3.0), as using the wrong firmware can permanently damage the board. 1. Identify Your Hardware Version

allow users to flash directly from the Windows environment, though this is generally considered riskier due to potential OS crashes. DOS-Based Flashing:

. The system will flash the BIOS and typically shut down or restart automatically. Post-Update : Enter the BIOS (press during boot) and check the ME FW Version ; a version like 8.1 usually indicates a successful update. ECS ELITEGROUP 2. UEFI/USB Flash Method

1. Get a small USB thumb drive (2GB to 16GB is best; very large drives sometimes fail to boot).
2. Format the drive as FAT32. (This is critical for the BIOS to read it).
3. Download the BIOS zip file from Step 2 and extract it.
4. Copy the BIOS file (usually named something like H61H2MV.ROM or similar) to the root of the USB drive.
5. If the zip file included a flash utility like AFUDOS.EXE, copy that as well. If it didn't, you may need to download the generic AMI AFUDOS utility (ensure it is the version compatible with your BIOS file).

• Improved AHCI controller compatibility for various SSDs and HDDs.
• Fixes for drive detection issues and stability under heavy I/O workloads.

1. Press Win + R → type msinfo32 → press Enter.
2. Look for "BIOS Version/Date."

   Extract: Unzip the folder to find the BIOS file and the afuwin.exe utility.

   "Full" recommendation: Flash v2.23 + apply the NVMe module (using UEFITool) if you plan to use modern M.2 SSDs via adapter.