Our desktop keeps shutting down. Let me describe the problem in detail:
1. One day, the computer suddenly shut off when we were working on it- (no warning, not a proper shut down, it just went off- like a light bulb switches off J )
2. We turned it back on and it turned back on normally. Then when it went to the login screen, and we logged in it turned off immediately like before
3. When we turned it back on again, it shut down when it reached the login screen (before we could type the password)
4. It never stays on long enough to do anything like run an anti-virus program etc
5. We then tried to start it in safe mode but it still turned off so we could not do anything on safe mode either.
6. We tried disconnecting the monitor but it still stayed on for some time and turned off.
7. We tried disconnecting the keyboard, mouse etc. But again no difference. Still turns off every time in the first ten to fifteen mins, sometimes even in 2 mins.
8. Yesterday, our friend changed the power supply and put in a spare one (not new one) and it seemed to work fine. But when we got home we kept the comp on for 25 mins and it shut down again. We turned it on but again after 20-25 mins it turned off.
So this is the story. Any idea what it could be?
Other details: The PC is a Dell Insipron (2350) around 5-6 years old, runs Windows XP, antivirus- we use Rising Antivirus.
