Firmware for the MSI H61M-P21 (B3), MS-7680 at revision 3.2, supplied as ZIP. It is a separate package from other images for this board, so compare sizes and contents before choosing one. MSI prints the MS- model and revision on the PCB near the slots, which is the reliable reference. Use a programmer such as CH341A to read and keep the current chip contents, then write the image, making sure its size equals the flash capacity, and verify after programming.
The button opens the matching file on RM Schematics, or a source page if it is not catalogued there yet. The original attachment is from @biosarchive. Enginerys does not host this file.
How to open a .zip file
Compressed archive that every operating system opens without extra software.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →