BIOS firmware for the ASRock-style B75 Pro3-M desktop board, an Intel B75 chipset model, packed as a 4.66 MB RAR file. The brand is not stated in the input, so confirm the board printing before use. Extract the image and program it onto the SPI flash with a CH341A or similar tool when the board no longer posts after a failed update. Read the original chip and keep that copy, check that the file size equals the chip capacity, and verify the written data before reinstalling the chip on the board.
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 →