It happend twice today just hours ago. The PC was turning on by it self while i was not in the room from sleep, it must have been the very very big vibrations from the sound that shook all the windows, but it may be something else as it appears it turned on by it self after 30 min or so ... no idea, the mobo is kind of buggy in some areas of bios, not unstable but kind of bah. But throughout all the thunder, when I was on the other PC just in the other room, i heard the win7 sound of USB device being unplugged, like wtf, it wasn't heard from this PC, and it certainly couldn't be on the shutted down one, and I am alone in the house. Then i came back to the PC, seeing it turned on, logged in, and just as the big lightning flash happens outide (it was less than 3 sec thunder delay so it was close) the sound goes again. Is this like a fact that it can interfere electronics in such a way or some annomaly ?