BIOS package for the Foxconn 45CMX and 45GMX series desktop motherboards, a compact 382 KB RAR archive listed under ECS. These are Intel 945 chipset era boards, and their firmware is small, so the image may be written with a flash utility or directly onto the SPI or LPC chip with a programmer. Check which exact model variant your board is, since the CMX and GMX boards differ. Save the original contents of the chip first, and confirm the file size matches the flash capacity.
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 →