Firmware archive for the MSI H61M-P21 B3 (O) desktop motherboard, MS-7680, PCB version 3.2. The B3 marking refers to the H61 chipset stepping. Use it to rewrite a corrupted SPI flash with a programmer when the board shows no display or loops on power-up. Because MS-7680 spans several retail models and revisions, match both the model sticker and the version printed near the PCI slots. Before writing, dump the original chip and check that the extracted image size equals the flash capacity.
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 .rar file
Compressed archive — the usual wrapper for a schematic + boardview pair or a BIOS + EC set.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →