Gigabyte G31M-ES2C motherboard BIOS with an .FJ extension, which Gigabyte uses to mark the firmware release, here version FJ. The 512 KB image corresponds to a 4 Mbit flash chip. It can be applied with Gigabyte flashing tools or written directly with an SPI programmer when the board fails to post. Confirm the board model and PCB revision, check for dual BIOS chips, and back up the original chip contents before writing the new image.
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.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →