Gigabyte BIOS release F2 for the GA-H81M-S motherboard, a 4.00 MB image using Gigabyte's version-number file extension. Gigabyte names official BIOS files after the board with the version as the extension, so F2 is a later release than F1. It can be flashed through the board's update utility or written to a 4 MB SPI chip with a programmer when the board will not boot. Confirm the exact model and board revision first and keep a backup of the current chip contents.
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 @laptopschematics. Enginerys does not host this file.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →