ECS H61H2-A2 Deluxe BIOS, in a ZIP of about 3.40 MB, with the tag W_A7B6h and an 8 MB flash size stated in the name. The board uses Intel's H61 desktop chipset, and an image like this restores firmware via an SPI programmer when the board shows no POST. The decompressed file should be exactly 8 MB for the stated chip, so check that and read the chip markings before writing. Keep a backup of the original contents, because the LAN MAC address and board data may live inside the flash.
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 →