BIOS for the MSI Z270-A PRO desktop motherboard, board number MS-7A71, packed as a 6.67 MB RAR. This Intel Z270 board stores its firmware in an SPI flash chip, and the image is meant for reprogramming it with a hardware programmer when the board no longer posts or a flash update failed. MSI numbers its boards as MS-7xxx, so confirm the PCB marking. Read and save the existing chip contents before writing, and compare the extracted file size with the chip capacity, as a size mismatch means the image will not fit.
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 →