diagnostic power pads for turning on

i wanna know if pc laptops have diagnostic power pads on the motherboards to turn them on without connecting a power button. this is because many of them have a button board and a button. so you need to order extra parts just to turn on the device.

i know apple laptops have them, but don't know for PCs

crwdns2893858:0crwdne2893858:0 crwdns2893862:0crwdne2893862:0


crwdns2889612:0crwdne2889612:0 0