BIOS image for the HP ProBook 450 G5 built on Quanta board DA0X8CMB6E0 revision E, project code X8C, marked for the 8th generation Intel CPU version of the board. The DA0 prefix is the Quanta pattern, with X8C as the project code. Flash it to the SPI BIOS chip with an external programmer when the laptop will not post or after a bad update. Always save a full read of the existing chip first, verify the chip capacity matches the image, and confirm the CPU generation fitted on your board.
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 @biosarchive. 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 →