BIOS firmware for the Gigabyte GA-H55M-S2, board revision 1.3, supplied as a 2.71 MB ZIP. The name gives no version number, so check the contained image or readme. This microATX board uses the Intel H55 chipset for LGA1156 processors. A dump like this restores a board that does not POST after a failed update; it can be written with a programmer such as CH341A to the SPI chip. Confirm revision 1.3 on the PCB, save the existing chip contents and ensure 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 .zip file
Compressed archive that every operating system opens without extra software.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →