DAX8PMB18A0 – HP ProBook 430 G8

The DAX8PMB18A0 (Quanta) motherboard is found in the HP ProBook 430 G8. The catalog lists 2 files for it: 2 BIOS files and 2 EC firmware images.

File names mention revision A. The BIOS dumps are 32 MB images. The earliest file dates from September 2023 (BIOS Archive).

BIOS dumps 2

FileSizeRevAddedSource

Board facts

Board numberDAX8PMB18A0
Designed byQuanta
Platform groupX8P
RevisionsA
BIOS chip size32 MB
CPU generationIntel 11th gen
First seen2023-09-16
Source channelsBIOS Archive
About the numberQuanta board numbers follow the pattern DA + project code + MB + suffix, where the second-to-last letter is the PCB revision.

Laptops that use DAX8PMB18A0

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.

EC (embedded controller) firmware runs the keyboard controller, power sequencing, battery charging and fans. Depending on the board it lives in a separate chip (ENE KB9012, ITE IT85xx, Nuvoton NPCE) or inside the main SPI image, so check which applies before flashing.

Tools to open these files

FormatWhat it isOpen with
.rarRAR archive7-Zip or WinRAR
.zipZIP archive7-Zip, WinRAR or the built-in Windows extractor
.binBIOS image inside the archive (usually .bin)a CH341A, XGecu T48 / TL866II Plus or RT809H programmer

Questions

What BIOS chip size does DAX8PMB18A0 use?

The BIOS images for DAX8PMB18A0 are 32 MB.

Which laptops use the DAX8PMB18A0 board?

Files in the catalog link DAX8PMB18A0 to the HP ProBook 430 G8.

Are these files free?

1 of the posts are marked VIP or paid in their source channel; the others are ordinary posts. ChambersDesignInc.com does not host or sell files.

Who designed the DAX8PMB18A0 board?

DAX8PMB18A0 is a Quanta board number used by HP.

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.