LA-7901P – Dell Latitude E5430
The LA-7901P (Compal) motherboard is found in the Dell Latitude E5430, Dell Latitude HM77, Dell Latitude 5430 and Dell Latitude U52. 17 files are indexed for this board: 13 BIOS files, 2 schematics, 2 boardviews and 2 EC firmware images.
Revisions seen in file names: 1.0. BIOS images are 4 MB and 8 MB. ODM project name: QXW00. The earliest file dates from March 2019 (BIOS Archive, Schematics & Boardviews Archive and Cyberlan Electronics).
BIOS dumps 13
Schematics 2
Boardviews 2
Board facts
| Board number | LA-7901P |
|---|---|
| Designed by | Compal |
| Platform group | LA-7 |
| ODM project | QXW00 |
| Revisions | 1.0 |
| BIOS chip size | 4 MB, 8 MB |
| Graphics | UMA (integrated) |
| First seen | 2019-03-01 |
| Source channels | BIOS Archive, Schematics & Boardviews Archive, Cyberlan Electronics, Laptop & Desktop BIOS Files |
| About the number | Compal board numbers start with LA- for main boards and LS- for daughter boards. |
Laptops that use LA-7901P
- Dell Latitude E5430
- Dell Latitude HM77
- Dell Latitude 5430
- Dell Latitude U52
- Dell Latitude U53
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 |
| .bin | raw SPI flash image | a CH341A, XGecu T48 / TL866II Plus or RT809H programmer |
| .brd | .brd boardview (Test_Link format) | OpenBoardView, FlexBV or BoardViewer |
| .cad | .cad boardview | FlexBV, OpenBoardView or BoardViewer |
| .rar | RAR archive | 7-Zip or WinRAR |
| .zip | ZIP archive | 7-Zip, WinRAR or the built-in Windows extractor |
Questions
What BIOS chip size does LA-7901P use?
The BIOS images for LA-7901P are 4 MB and 8 MB.
Who designed the LA-7901P board?
LA-7901P is a Compal board number used by Dell.
Which laptops use the LA-7901P board?
Files in the catalog link LA-7901P to the Dell Latitude E5430, Dell Latitude HM77, Dell Latitude 5430, Dell Latitude U52 and Dell Latitude U53.
Is there a boardview for LA-7901P?
Yes, 2 boardview files in .bdv, .brd and .cad 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.