Compact BIOS package in RAR form, 373 KB, for a desktop board based on the VIA P4M800 chipset with an LGA775 processor socket, as the name indicates. No board maker or revision is given, so the exact motherboard model must be identified from the PCB silkscreen. Older desktop boards of this kind often use socketed or small SPI/LPC flash chips that can be rewritten with a programmer. Verify the image size against the chip capacity and save the original contents before flashing a replacement BIOS.
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 →