BIOS image for the ASRock A320M-HD desktop motherboard, release 4.0 according to the name, packed in a 9.92 MB RAR archive. A320 boards of this class carry an SPI flash chip that can be reprogrammed with a CH341A or similar programmer when a failed update or corruption leaves the system dead. Extract the image and compare its size with the chip capacity before writing. Always read and keep a copy of the original contents, and make sure the board revision on the PCB matches.
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 →