Backup BIOS dump from an ASRock H81M-HG4 motherboard, revision 4.01, stored in a RAR of about 2.95 MB. As a backup read from a real board, it may contain board-specific data such as the MAC address. Use it to reprogram the SPI flash with an external programmer when the board fails to start. Make sure the PCB revision matches 4.01, save your own chip first, and confirm that the image size fits 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 .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 →