Gigabyte GA-P31-ES3G motherboard BIOS, a small archive of about 426 KB intended for this Intel P31 chipset desktop board. No version is stated in the name, so inspect the image inside before flashing. Older Gigabyte boards of this era often use DualBIOS and small SPI chips, so confirm the chip capacity matches the file. A programmer can restore a board that fails to post after a bad update; read and keep the original contents first and check the exact board revision 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 →