I'm hoping its the power supply. That came separate from the other components. Maybe its only in the 300's watt range, not sure I don't have the specs on it right now. I do use a battery back up thingy and everything else off of it has power and I changed which slot the tower was plugged into. So I'm hoping its a power supply thing. (Ang crosses her fingers) Just don't know how I can check it before going out and buying another power supply.