BIOS firmware for the HP Compaq Presario CQ40-415TU, a 1.00 MB image with no file extension and no board number in its name. The size corresponds to an 8 Mbit SPI flash chip. Technicians typically write such a dump with an external programmer to repair a laptop that powers on but will not post, or to replace a corrupted BIOS after a bad update. Read and keep the original chip contents first, check the chip marking for capacity, and match the motherboard revision, as CQ40 boards existed in different versions.
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 @bios_laptop. 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 →