Gigabyte GA-H55M-USB3 BIOS for board revision 1.0, packed in a 6.18 MB RAR. The H55 in the model refers to the Intel H55 chipset. Gigabyte boards of this generation often use a dual BIOS design, so the archive may be used to rewrite either flash chip with a programmer or via the board's recovery. Confirm the revision printed on the PCB is 1.0, back up the existing chip, and check the image size against the flash capacity before programming.
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 →