6-71-W5S20 – Clevo W940SU2
The Clevo W940SU2, Clevo W550SU2, Clevo W555SUY and Clevo W950SU2 are built on the 6-71-W5S20 board. ChambersDesignInc.com has indexed 7 files for this board — 4 BIOS files, 1 schematic, 2 EC firmware images and 1 service manual.
File names mention revision D02A, D03 or D03A. The BIOS dumps are 8 MB images. The earliest file dates from February 2019 (BIOS Archive and Schematics & Boardviews Archive).
BIOS dumps 4
Schematics 1
EC / KBC firmware 1
Service manuals 1
Board facts
| Board number | 6-71-W5S20 |
|---|---|
| Designed by | Clevo |
| Revisions | D02A, D03, D03A |
| BIOS chip size | 8 MB |
| First seen | 2019-02-17 |
| Source channels | BIOS Archive, Schematics & Boardviews Archive |
| About the number | Clevo main boards are numbered 6-71-xxxxx with a -Dxx revision suffix. |
Laptops that use 6-71-W5S20
- Clevo W940SU2
- Clevo W550SU2
- Clevo W555SUY
- Clevo W950SU2
- Clevo XS7005
- Positivo XS7005
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
What BIOS chip size does 6-71-W5S20 use?
The BIOS images for 6-71-W5S20 are 8 MB.
Is there a boardview for 6-71-W5S20?
No boardview has been indexed for 6-71-W5S20 yet; the schematic is available on this page.
Which laptops use the 6-71-W5S20 board?
Files in the catalog link 6-71-W5S20 to the Clevo W940SU2, Clevo W550SU2, Clevo W555SUY, Clevo W950SU2, Clevo XS7005 and Positivo XS7005.
Who designed the 6-71-W5S20 board?
6-71-W5S20 is a Clevo board number.
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.