I have built between 25 and 30 computers, and there is something new on one of them: The CPU Boots Up by itself! When I was told it was doing that, I couldn't believe it....( I built it for a friend). I took it home, and was surprised when it kept happening. I suspect that the problem is the motherboard. Motherboards, or some motherboards have some electrical charge even when turned off...looks like there is a technical problem that is making the motherboard get more juice than it is supposed to, and it causes the unexpected boot-up. Any ideas? Am I wrong?