BIOS image for the ASUS M2N-X desktop motherboard, an AM2 socket board, packed in a 404 KB RAR. No version number appears in the name, so compare it with what your board shipped with if that matters. Technicians use such a file to rescue a board after a failed flash, writing the chip with a programmer or a hot-swap method. Keep a backup of the old chip contents and confirm that the image size matches the flash capacity, otherwise it will not fit correctly.
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 →