BIOS for the MSI X58-PRO desktop motherboard, version 2.0 of the board as given in the name, packed in a 1.08 MB RAR archive. The X58 platform supports Intel LGA1366 processors. Such an image is used to recover a board after a failed update or corruption, either through the board's own update tool or by writing the flash chip with an external programmer. Check whether the file is a raw chip image or an update file, back up the original chip, and ensure the image size matches 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 →