DAX8QAMB8D0 – HP ProBook 440
The HP ProBook 440, HP ProBook 440 G8 and HP ProBook 450 G8 are built on the DAX8QAMB8D0 board designed by Quanta. ChambersDesignInc.com has indexed 5 files for this board — 2 BIOS files, 1 schematic, 2 boardviews and 1 EC firmware image.
File names mention revision D. The earliest file dates from November 2022 (Schematics & Boardviews Archive, Cyberlan Electronics and BIOS Archive).
BIOS dumps 2
Schematics 1
Boardviews 2
Board facts
| Board number | DAX8QAMB8D0 |
|---|---|
| Designed by | Quanta |
| Platform group | X8QA |
| Also known as | Quanta X8QA |
| Revisions | D |
| First seen | 2022-11-08 |
| Source channels | Schematics & Boardviews Archive, Cyberlan Electronics, 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 DAX8QAMB8D0
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.
A schematic is the circuit diagram of the main board: power rails, power-up sequence, component values and net names. It is the reference for measuring voltages and tracing a fault.
A boardview is the component placement map of the PCB: click a part or a net and the viewer highlights where it is and what it connects to. Used together with the schematic to find test points.
Tools to open these files
| Format | What it is | Open with |
|---|---|---|
| .bdv | Honhan .bdv boardview | OpenBoardView, FlexBV or Honhan BoardViewer |
| .cad | .cad boardview | FlexBV, OpenBoardView or BoardViewer |
| PDF schematic | any PDF reader; Sumatra PDF and Foxit handle large schematics well | |
| .rar | RAR archive | 7-Zip or WinRAR |
| .bin | BIOS image inside the archive (usually .bin) | a CH341A, XGecu T48 / TL866II Plus or RT809H programmer |
Questions
Who designed the DAX8QAMB8D0 board?
DAX8QAMB8D0 is a Quanta board number used by HP.
Is there a boardview for DAX8QAMB8D0?
Yes, 2 boardview files in .bdv and .cad format.
Which laptops use the DAX8QAMB8D0 board?
Files in the catalog link DAX8QAMB8D0 to the HP ProBook 440, HP ProBook 440 G8 and HP ProBook 450 G8.
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.