A 4.00 MB firmware file with no extension, the second copy of the 650hp C set, which seems to target an HP 650 notebook; brand context comes from the name only, and no board number is listed. Use it to recover a board with a corrupted BIOS by reprogramming the SPI flash externally. Before writing, verify the chip is 32 Mbit, compare the copy with the others in the set, and keep a backup of the original data, since serial numbers and system identifiers live in that region.
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 →