BIOS image for the ASUS PRIME B660-PLUS D4 desktop motherboard, sized for a 16MB SPI flash chip and marked by its source as fully working. The RAR archive holds a dump intended to restore a board that fails to POST or was left corrupted by a bad update. Write it with a programmer such as a CH341A after reading and saving the original chip contents. Confirm the chip is 16MB before flashing, because an image of the wrong size will not fit and will not boot..
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 →