Firmware dump of 4.00 MB without extension, labelled 650hp C and marked as the fourth copy; it appears to be intended for an HP 650 series machine, though no board number or revision is given. Several numbered copies usually mean multiple reads of one chip, so compare them to make sure the read was stable. The size suits a 32 Mbit SPI flash. Check the board marking and chip capacity, open the image in a hex editor to confirm the model string, and back up the original 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 @biosfilebins. 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 →