Ok I have been having this problem with my pc. It restarts evertime I play games(new/old), use my burning programs, somtime when windows starts the windows sounds do it to. I took it in to thr Doc and he sayed that I need a new power supply he did it and now it works but still fucks up when I play Wolfenstein - Enemy Territory and use ares. I got thinking that it maybe my prosseser so I got a fan blowing on my side of my pc and it works all good now as long as i got the fan on. so can I buy a fan for the pc like a CPU fan or a processer fan?