DAOX81MB6EO – HP ProBook 440 G4
The HP ProBook 440 G4 is built on the DAOX81MB6EO board designed by Quanta. ChambersDesignInc.com has indexed 2 files for this board — 2 BIOS files.
Revisions seen in file names: E. The BIOS dumps are 16 MB images. First posted in May 2018 in BIOS Archive.
BIOS dumps 2
Board facts
| Board number | DAOX81MB6EO |
|---|---|
| Designed by | Quanta |
| Also known as | Quanta X81 |
| Revisions | E |
| BIOS chip size | 16 MB |
| Flash chip | GD25B128C |
| First seen | 2018-05-20 |
| Source channels | BIOS Archive |
| About the number | Quanta board numbers follow the pattern DA + project code + MB + suffix, where the second-to-last letter is the PCB revision. |
Laptops that use DAOX81MB6EO
What these files are for
A BIOS dump is a full image of the board's SPI flash chip. It is written back with an SPI programmer when the original firmware is corrupted, after a chip replacement, or to recover from a failed update. Read and save the original chip first: serial number, DMI data and the Intel ME / AMD PSP state differ between boards.
Tools to open these files
| Format | What it is | Open with |
|---|---|---|
| .zip | ZIP archive | 7-Zip, WinRAR or the built-in Windows extractor |
| .bin | BIOS image inside the archive (usually .bin) | a CH341A, XGecu T48 / TL866II Plus or RT809H programmer |
Questions
What BIOS chip size does DAOX81MB6EO use?
The BIOS images for DAOX81MB6EO are 16 MB. Flash chips named in the files: GD25B128C.
Who designed the DAOX81MB6EO board?
DAOX81MB6EO is a Quanta board number used by HP.
Which laptops use the DAOX81MB6EO board?
Files in the catalog link DAOX81MB6EO to the HP ProBook 440 G4.
Where do the download links go?
Each button opens the original public Telegram post the file was shared in. ChambersDesignInc.com only indexes and cross-references those posts.