I'm pretty frustrated with my desktop. It shuts off at different time intervals with no warning. I really have no explanation. I'm running windows xp and on the off chance, I have been able to make it to my desktop view and run notepad. So far I've ruled out the power supply (and fans) and I don't think it's software related as I can run applications if it doesn't shut down. I've cleaned everything and ensured the connections are good. I've had it for 3 years and it's very reliable until now.
Any help would be appreciated. Mike