BIOS firmware for an Acer desktop motherboard labelled EG31M, version 1.1, supplied as a 787 KB RAR archive. The image is used to restore a board after a failed update or flash corruption, either through a recovery utility or by writing the BIOS chip with an external programmer. Given its small size, it targets an older board with a modest flash chip, so check the chip type and capacity first. Read and save the existing firmware before programming, and confirm the board model marking matches.
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 →