BIOS firmware for the ASUS P5N-MX desktop motherboard, packed as a 485 KB RAR archive. Images for boards of this generation are usually small, so check that the extracted file matches the capacity of the flash chip on your board. Use it to recover a board that will not POST after a failed update, by programming the chip with an external programmer or replacing it with a pre-flashed one. Back up the original chip first, and confirm the board model printed on the PCB.
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 →