LA-4981P – Toshiba Satellite L500
The LA-4981P (Compal) motherboard is found in the Toshiba Satellite L500. ChambersDesignInc.com has indexed 5 files for this board — 4 BIOS files and 1 schematic.
File names mention revision 1.0. BIOS images are 2 MB. First posted in December 2017 in BIOS Archive, BIOS Files and Schematics & Boardviews Archive.
BIOS dumps 4
Schematics 1
Board facts
| Board number | LA-4981P |
|---|---|
| Designed by | Compal |
| Platform group | LA-4 |
| Revisions | 1.0 |
| BIOS chip size | 2 MB |
| Flash chip | MX25L1605AM2C |
| First seen | 2017-12-02 |
| Source channels | BIOS Archive, BIOS Files, 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-4981P
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 |
|---|---|---|
| .7z | 7-Zip archive | 7-Zip or WinRAR |
| 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 |
| .bin | BIOS image inside the archive (usually .bin) | a CH341A, XGecu T48 / TL866II Plus or RT809H programmer |
Questions
Who designed the LA-4981P board?
LA-4981P is a Compal board number used by Toshiba.
What BIOS chip size does LA-4981P use?
The BIOS images for LA-4981P are 2 MB. Flash chips named in the files: MX25L1605AM2C.
Is there a boardview for LA-4981P?
No boardview has been indexed for LA-4981P yet; the schematic is available on this page.
Which laptops use the LA-4981P board?
Files in the catalog link LA-4981P to the Toshiba Satellite L500.
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.