Working BIOS for the HP ProBook 450 G5 on Quanta motherboard DA0X8CMB6E0 revision E, sized for a 16MB flash chip and labelled fully working. Quanta, an ODM that builds many HP notebooks, uses this DA-prefixed board numbering. The dump is used to recover boards with corrupted firmware, no display or boot loops by writing the SPI chip with a programmer such as a CH341A. Save the original contents first, as they hold serial and system data, and check the PCB is revision E.
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.
All sources (2)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @biosarchive | 27 Jul 2024 | Open file on RM Schematics |
| @generalbios | 4 Nov 2024 | Open file on RM Schematics |
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 →