BIOS firmware for the Gigabyte GA-78LMT-S2PT desktop motherboard, intended for board revisions 4.0 and 4.1 according to the name. The 2.11 MB RAR archive needs unpacking to reach the image. Technicians use such a dump to recover a board that will not post after a failed update by writing the SPI flash with a programmer such as a CH341A. Check that the revision printed near the PCIe slots is 4.0 or 4.1, back up the current chip, and verify that the file size equals 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 →