LA-6842P – Toshiba Satellite C660
The LA-6842P (Compal) motherboard is found in the Toshiba Satellite C660 and Toshiba Satellite C660-1H9. The catalog lists 6 files for it: 4 BIOS files, 2 schematics and 2 EC firmware images.
Revisions seen in file names: 0.2 and 1.0. BIOS images are 256 KB and 4 MB. The earliest file dates from February 2018 (BIOS Archive, Schematics & Boardviews Archive and Laptop & Desktop BIOS Files).
BIOS dumps 4
Schematics 2
From the uploader
PWWAA LA-6842P Rev : 1.0
ENE KB926 E0
WINBOND 25Q32BVS (U13)
MX25L2005CMI (U22)
Board facts
| Board number | LA-6842P |
|---|---|
| Designed by | Compal |
| Platform group | LA-6 |
| Revisions | 0.2, 1.0 |
| BIOS chip size | 256 KB, 4 MB |
| Flash chip | 25Q32BVS, MX25L2005CMI |
| First seen | 2018-02-12 |
| Source channels | BIOS Archive, Schematics & Boardviews Archive, 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-6842P
- Toshiba Satellite C660
- Toshiba Satellite C660-1H9
- Toshiba Satellite C655
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.
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 |
|---|---|---|
| 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-6842P board?
LA-6842P is a Compal board number used by Toshiba.
Which laptops use the LA-6842P board?
Files in the catalog link LA-6842P to the Toshiba Satellite C660 and Toshiba Satellite C660-1H9.
What BIOS chip size does LA-6842P use?
The BIOS images for LA-6842P are 256 KB and 4 MB. Flash chips named in the files: 25Q32BVS and MX25L2005CMI.
Is there a boardview for LA-6842P?
No boardview has been indexed for LA-6842P yet; the schematic is available on this page.
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.