My Dell Precision 390 Desktop started turning itself on and off. After unplugging the power it would stay on a tiny bit longer. Unplugged computer from power surge and plugged directly into wall...still does same thing. Stays on a little longer if I have it unplugged for a while and then plug back in. Will let me to the point to log on to computer then shuts down. Had it looked at and power source not the problem, and all fans are working properly. Any ideas?
thanks Windows XP
Problem solved...was bios