Firmware dump of 4.00 MB labeled only JM31-CP, with no file extension. The name does not say which device or manufacturer it belongs to, so identify the board carrying the JM31-CP marking before using it. A 4 MB image corresponds to a 32 Mbit SPI flash chip, commonly found on older laptop and desktop boards. Write it with a hardware programmer only after confirming the chip capacity, and keep a backup of the original contents in case the file does not match.
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 @BiosSchematicWorld. Enginerys does not host this file.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →