Originally Posted by jac006
I'm thinking a power spike or something like that? Weird power fluctuations...?
I've got an old PC at home that can turn itself on as soon as it's plugged in, without me hitting the power button. Sometimes it happens even if the plug's turned on but the box was turned off manually by me some time earlier.
So yes, that's very likely actually. You could just unplug the PC when you're not using it, that would stop itself switching on during the day when you're out, which wastes power.