BIOS dump for the Intel DX79SI desktop motherboard, an X79-series board, described in the name as working, stored in a 1.55 MB RAR archive. A technician would write it to the board's SPI flash with an external programmer when the existing firmware is corrupted and the system fails to post. Since the archive is small, check that the extracted image matches your flash chip capacity before programming, and always read and keep the original chip contents first, as they may contain board-specific identifiers.
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 →