Alright well i switched some things with my sisters computer with my computer, meaning my video card, memory and ram. But i switched everything back and now my sisters fans wont turn on, and her computer shuts off because of it. The only ones that turn on are the ones in the power supply i have 2 more, 1 is on the back of the computer and the other is on the processer. All the plugs are back where they should and i dont know what could of happen. By the way b4 i switched everything 1 of her fans where loud but the computer was running fine for about a year, any help could be useful.