BIOS image packed in a RAR archive for an MSI-numbered desktop board MS-7593, labelled X58M at revision 1.2, with v38 in the name most likely marking the BIOS version. The MS-7xxx pattern is MSI's own motherboard numbering, so confirm that the sticker or silkscreen on the PCB reads MS-7593 and the same revision before flashing. Extract the image, read and save the existing SPI chip contents with a programmer such as a CH341A, then compare file size with the chip capacity before writing, since a mismatched image will not fit or boot.
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 →