BIOS firmware for the ASRock AM1B-M desktop motherboard, version 1.50, packed as a RAR archive of about 6 MB. Such a file is typically used to restore a corrupted BIOS or update the board, either through the vendor flashing utility or by writing the SPI chip with an external programmer. Before programming, read and save the original chip contents, and make sure the image size matches the flash capacity, as a mismatched file will not fit. Confirm the board model on the PCB is AM1B-M before flashing.
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 →