BIOS image for the HP ProBook 450 G3 on Quanta board DAX63CMB6C0. Quanta numbers its motherboards in the DA…MB6x0 style, where the letter before the final zero, here C, is the board revision, and X63 is the project code. The 4.53 MB archive is meant for reflashing the SPI chip on boards with corrupted firmware, no POST or BIOS lock. Check the PCB label against DAX63CMB6C0, back up the original chip, which holds system data, and confirm the size matches the flash chip.
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 @afsbiosfree. 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 →