I'm having problems with spontaneous shutdowns, This is whats going on. The computer will just shut down without warning. It shuts itself off as if the power button was pressed. I can immediately press the power button and it will come back on but there will be no safe mode screen. Windows starts as if I just shut it down regularly. This happens when there is no real load on the computer (surfing the web or listening to winamp for example. I've be playing Crysis demo and its never happened during gaming. To all the experts out there what does this sound like . Is this a power supply, power switch or Motherboard problem. Also I have temp monitors in the taskbar for the GPU and both CPU cores and the temps are between 35-40c for all of them so I dont think its a heat issue. Sorry for the long post but I like to give as much info the first time to help diagnose. Thanks in advance for the help.