My PC went down, no BSOD, nothing, just like that. All lights were off . I could not reset it . I tried restarting it twice, it was like dead. It looked like someting very bad had happened. After a few minutes I started it and it worked. It did seem a little hot in the back and I don't see the fan(back) turning at all although I never really paid attention to it. Is it supposed to turn at all time? It used to be noisy at times, I just read that coud have been the fan about to die. Please help.