Working BIOS for a board marked H81H3-M, version 1.0A, packaged as a 3.60 MB RAR; the name gives no brand. H81 refers to the Intel chipset, so this is a Haswell-era desktop board, often found in OEM systems. The image is used to reflash the SPI chip via programmer after a failed update or corruption. Confirm the board marking and version on the PCB, check that the image matches the chip size, and save the original contents before erasing.
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 →