DAG7BJMB8C0 – HP 15
DAG7BJMB8C0 is the Quanta main board used in the HP 15. The catalog lists 3 files for it: 3 BIOS files and 1 EC firmware image.
Revisions seen in file names: C. BIOS images are 16 MB. The earliest file dates from March 2022 (BIOS Archive).
BIOS dumps 3
Board facts
| Board number | DAG7BJMB8C0 |
|---|---|
| Designed by | Quanta |
| Revisions | C |
| BIOS chip size | 16 MB |
| First seen | 2022-03-14 |
| 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 DAG7BJMB8C0
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
| Format | What it is | Open with |
|---|---|---|
| .rar | RAR archive | 7-Zip or WinRAR |
| .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
Who designed the DAG7BJMB8C0 board?
DAG7BJMB8C0 is a Quanta board number used by HP.
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.
Which laptops use the DAG7BJMB8C0 board?
Files in the catalog link DAG7BJMB8C0 to the HP 15.
What BIOS chip size does DAG7BJMB8C0 use?
The BIOS images for DAG7BJMB8C0 are 16 MB.
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.