BIOS image for the ASRock B85M-Pro4 motherboard, revision 1.05, packed in a 5.09 MB RAR. It is useful when the board fails to POST after an interrupted update or when replacing the BIOS chip, since the image can be programmed directly with a CH341A or similar tool. Confirm that the PCB revision reads 1.05, read and save the original chip contents including the MAC address, and verify the image size matches the flash capacity before writing.
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 →