BIOS package for an H81M-A motherboard, presumably the ASUS model of that name, although the file does not state the brand. The ZIP is 5.09 MB, and the name gives no version number or note on whether the dump was tested. Use it to restore a corrupted SPI flash on a board that will not POST, writing it with a CH341A or similar programmer. Back up the existing chip first and check that the image size fits the flash capacity on your board.
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 →