BIOS archive for the ASRock DeskMini X300M-STX mini-STX AMD motherboard, 17 MB compressed. The name does not say whether it is a vendor update file or a programmer dump, or which version it is, so check the extracted contents. A raw image can restore a board with a corrupted BIOS using an SPI programmer on the flash chip. Back up the existing contents before writing, and compare the image size with the chip capacity so the file actually fits.
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 →