BIOS for the ASUS AM1M-A desktop motherboard, a 6.46 MB RAR archive; the name does not state the version or whether it is a raw dump or an update file. A technician uses it to restore corrupted firmware, either through the board's own flash utility or by writing the SPI chip directly with a programmer. Inspect the contents and compare the image size with the flash chip capacity before programming, and read a backup of the original chip first.
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 →