Firmware for the Gigabyte GA-H55M-USB3 motherboard, revision 2.0, in a RAR archive of about 3.11 MB. Gigabyte often sells several revisions under one model name, and BIOS images are tied to a specific revision, so confirm 2.0 is printed on the PCB. The board may use dual BIOS chips, and this image can be written to the SPI flash with a programmer to revive a board that will not POST. Save the original chip contents first and make sure the image size 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 →