LA-4901P – HP EliteBook 8440P
LA-4901P is the Compal main board used in the HP EliteBook 8440P, HP EliteBook 8440 and HP EliteBook 8440W. ChambersDesignInc.com has indexed 8 files for this board — 5 BIOS files, 1 schematic and 2 boardviews.
File names mention revision 1.0. The BIOS dumps are 8 MB images. ODM project name: KCL00. First posted in February 2017 in BIOS Archive, Schematics & Boardviews Archive and Cyberlan Electronics.
BIOS dumps 5
Schematics 1
Boardviews 2
Board facts
| Board number | LA-4901P |
|---|---|
| Designed by | Compal |
| Platform group | LA-4 |
| ODM project | KCL00 |
| Revisions | 1.0 |
| BIOS chip size | 8 MB |
| Flash chip | 25Q64BV |
| Graphics | discrete GPU |
| First seen | 2017-02-22 |
| 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-4901P
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 |
| .cad | .cad boardview | FlexBV, OpenBoardView or BoardViewer |
| 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
What BIOS chip size does LA-4901P use?
The BIOS images for LA-4901P are 8 MB. Flash chips named in the files: 25Q64BV.
Which laptops use the LA-4901P board?
Files in the catalog link LA-4901P to the HP EliteBook 8440P, HP EliteBook 8440 and HP EliteBook 8440W.
Who designed the LA-4901P board?
LA-4901P is a Compal board number used by HP.
Is there a boardview for LA-4901P?
Yes, 2 boardview files in .bdv 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.