12308-2 – Lenovo ThinkPad T540P
The 12308-2 (Wistron) motherboard is found in the Lenovo ThinkPad T540P. 3 files are indexed for this board: 2 BIOS files and 1 schematic.
The earliest file dates from April 2021 (BIOS Archive, Schematics & Boardviews Archive and Cyberlan Electronics).
BIOS dumps 2
Schematics 1
Board facts
| Board number | 12308-2 |
|---|---|
| Designed by | Wistron |
| Platform group | 12XXX |
| First seen | 2021-04-27 |
| Source channels | BIOS Archive, Schematics & Boardviews Archive, Cyberlan Electronics |
| About the number | Wistron board numbers look like 15217-1; the first two digits usually indicate the design year. |
Laptops that use 12308-2
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 |
|---|---|---|
| .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 12308-2 board?
12308-2 is a Wistron board number used by Lenovo.
Which laptops use the 12308-2 board?
Files in the catalog link 12308-2 to the Lenovo ThinkPad T540P.
Is there a boardview for 12308-2?
No boardview has been indexed for 12308-2 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.