I have an older computer that was working just fine. I usually leave it turned on all the time. I left town for one week and my wife shut it down the day I left. Upon my return, I tried to start the computer and a siren went off and it would not boot. After some initial internet searches, it appeared to be an overheating issue. Sure enough the power supply fan was frozen. I replaced the power supply and the same thing. I checked everything inside and finally got it to start up in safe mode. I ran an error check using windows XP and no errrors were found. When I try to boot normally, it starts up, gets all the way to the desktop, the siren goes off and it shuts down. If anyone has any idea or can give me some advice, I would be greatly appreciative.--David
Edited by Waterhead, 07 February 2009 - 10:39 PM.