LA-4091P – HP Pavilion DV7-AMD-UMA
LA-4091P is the Compal main board used in the HP Pavilion DV7-AMD-UMA. The catalog lists 5 files for it: 3 BIOS files and 2 schematics.
First posted in May 2019 in BIOS Archive, Schematics & Boardviews Archive and Cyberlan Electronics.
BIOS dumps 3
Schematics 2
Board facts
| Board number | LA-4091P |
|---|---|
| Designed by | Compal |
| Platform group | LA-4 |
| Graphics | UMA (integrated) |
| First seen | 2019-05-18 |
| Source channels | BIOS Archive, Schematics & Boardviews Archive, Cyberlan Electronics |
| About the number | Compal board numbers start with LA- for main boards and LS- for daughter boards. |
Laptops that use LA-4091P
- HP Pavilion DV7-AMD-UMA
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.
Tools to open these files
| Format | What it is | Open with |
|---|---|---|
| .bin | raw SPI flash image | a CH341A, XGecu T48 / TL866II Plus or RT809H programmer |
| PDF schematic | any PDF reader; Sumatra PDF and Foxit handle large schematics well | |
| .rar | RAR archive | 7-Zip or WinRAR |
| .zip | ZIP archive | 7-Zip, WinRAR or the built-in Windows extractor |
Questions
Who designed the LA-4091P board?
LA-4091P is a Compal board number used by HP.
Is there a boardview for LA-4091P?
No boardview has been indexed for LA-4091P yet; the schematic is available on this page.
Which laptops use the LA-4091P board?
Files in the catalog link LA-4091P to the HP Pavilion DV7-AMD-UMA.
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.