BIOS archive for the Gigabyte GA-H81M-S desktop motherboard, revision 2.x, packed as a 2.77 MB RAR. The H81 chipset places this board in the Intel Haswell generation, and the image is meant for recovery when the board no longer posts after a failed update or corrupted flash. Extract the binary and write it to the SPI chip with a programmer such as a CH341A. Confirm the revision silkscreened near the PCIe slot reads 2.x, since 1.0 boards use different firmware, and save a copy of the original chip contents first.
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 →