Firmware image for the ASUS P5G41C-M LX desktop board, marked with an (O) suffix in the name, delivered as a 687 KB RAR. The suffix likely denotes an original or specific variant, so read the board silkscreen carefully before using it. Such a dump is normally written to the BIOS chip with an external programmer when the board fails to post after a bad update. Always save the existing contents first and make sure the image size equals the flash chip capacity so it fits 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 →