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- 16:14, 25 December 2023 86.120.202.16 talk created page Lenovo Thinkpad W541 (Created page with "{{Device page |Manufacturer=Lenovo |Has code name=Thinkpad W541 |Device release date=2014 |Device type=Laptop }} == Potential pitfalls == * The motherboard will not turn on without the I/O SubCard connected. Actually it will turn on and then immediately assert -PWRSHUTDOWN, which will cause the first mosfet (Q9) to go off. This is most likely because the subcard has a power switch or regulator on it that is turned on by the VCC5MUBAY_DRV signal, and then the EC expects...") Tag: Visual edit: Switched