Chosen Solution
I have a lenovo M90P small form factor And the power switch is not working I’ve tried reseating and then seeding the wires have tried the paper clip test I’ve used the paper clip test make sure that power runs through or everything on the motherboard and I got power to everything but the computer refuses to turn on with the power switch I’ve even gotten a remote power switch to test see if it wasn’t the case is power switch and there was no luck there, any ideas?
Just to be sure that everything is correctly connected, you need to check this list, but before starting you should take a photo of the front panel connector then remove everything from the motherboard (you can keep the CPU). In the image below I highlighted the two connectors that need to be connected with the PSU and another one with the front panel connector:
According to this manual which you can find more information about your PC, it didn’t mention the front panel pins labels, so assuming by default they use the same design as other MoBo you can compare this image with the one you took.
The last thing to check if nothing works are the jumpers, I didn’t read the whole manual yet but could you please send us an HD photo of your Mobo.
