Lenovo · laptop motherboard

Lenovo ThinkPad W541 12291-2

SchematicBoardviewBIOS
Board code
12291-2
Platform
Wistron LKM
Made by
Wistron
Revisions
Rev 1.0
Files
12
Updated

Lenovo ThinkPad W541 12291-2 is a laptop motherboard designed by Wistron and used in the Lenovo ThinkPad W541, Lenovo ThinkPad W540, Lenovo W540 WS and Lenovo ThinkPad T540P and 1 more.

The catalog has 2 schematics, 1 boardview file and 9 BIOS files for it, posted between 2019 and 2024 across 3 Telegram channels. Each download button opens the original Telegram post.

The files are marked Rev 1.0; other revisions of the same board can differ in parts and layout.

The boardview comes in .BDV format. OpenBoardView (free) usually opens these files; FlexBV works too. See OpenBoardView: Installation and First Steps.

With both a schematic and a boardview you can find a net on the diagram and then locate the same part on the board by its reference designator. No Boardview for Your Board? How to Work Without One shows the workflow.

Read and save the original chip contents before you write anything to it — Keeping the Windows Product Key (MSDM) When Reflashing a BIOS.

Also listed under platform Wistron LKM; codes 12291-1.

Compatible models

Files for Lenovo ThinkPad W541 12291-2

Schematics 2 All schematics →

Boardview files 1 All boardview files →

BIOS and firmware 9 All bios and firmware →

Notes from the source posts

  • THINKPAD W541 LKM-1 WS MB 12291-2 48.4L013.021 CPU—i7 4710M SR17C G31428 N15P-Q1-A2

Frequently asked questions

Which laptops use the 12291-2 motherboard?
File names in the catalog tie 12291-2 to the Lenovo ThinkPad W541, Lenovo ThinkPad W540, Lenovo W540 WS, Lenovo ThinkPad T540P and Lenovo W541 WS. Laptops sold under one model name can use different boards, so confirm by the code printed on the motherboard.
Which revision of 12291-2 do I have?
Files for this board mention Rev 1.0. The revision is printed on the PCB silkscreen, usually next to the board code. Pick files with the same revision when you can; if yours is not listed, the closest revision is usually fine for the schematic but check part positions in the boardview carefully.
How do I open the 12291-2 boardview file?
The boardview for 12291-2 is available as .BDV. .BDV usually opens in OpenBoardView (free) or FlexBV. See What Is a Boardview File and Why You Need One.
What should I check before flashing the 12291-2 BIOS?
Read the original chip with a programmer and save two copies before writing anything. A dump from another board carries that board's serial number and MAC address, so restore yours from the backup.

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Files are hosted on Telegram by third parties; ExcitingSpas.com only links to public posts. Check that a file matches your board before using it. Disclaimer · Report a file