DAX31MB1AA0 – HP 13-ac049tu
DAX31MB1AA0 is the Quanta main board used in the HP 13-ac049tu, HP Spectre X360-13-AC022TU and HP TPN-Q178. 6 files are indexed for this board: 4 BIOS files, 1 schematic and 1 boardview.
File names mention revision A. First posted in December 2020 in BIOS Archive, Schematics & Boardviews Archive and Cyberlan Electronics.
BIOS dumps 4
Schematics 1
Boardviews 1
Board facts
| Board number | DAX31MB1AA0 |
|---|---|
| Designed by | Quanta |
| Platform group | X31 |
| Also known as | Quanta X31 |
| Revisions | A |
| CPU generation | Intel 7th gen |
| Graphics | UMA (integrated) |
| First seen | 2020-12-15 |
| Source channels | BIOS Archive, Schematics & Boardviews Archive, Cyberlan Electronics |
| 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 DAX31MB1AA0
- HP 13-ac049tu
- HP Spectre X360-13-AC022TU
- HP TPN-Q178
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 |
| .brd | .brd boardview (Test_Link format) | OpenBoardView, FlexBV 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
Which laptops use the DAX31MB1AA0 board?
Files in the catalog link DAX31MB1AA0 to the HP 13-ac049tu, HP Spectre X360-13-AC022TU and HP TPN-Q178.
Who designed the DAX31MB1AA0 board?
DAX31MB1AA0 is a Quanta board number used by HP.
Is there a boardview for DAX31MB1AA0?
Yes, 1 boardview file in .bdv and .brd format.
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.