Posted 11 December 2004 - 11:18 PM
I would say a power supply or heating issue.
Just like in a car, if you run it for long with a leak in the radiator (in your case, the fan stopped running), you heat components up higher then normal. In time, they almost get used to the heat, and adjust to the best of its ability, until it shuts down. When you repair the component, it does not understand what you have done, after being used to the hot conditions. In a vehicle's situation, you could get a cracked head (yep, first hand on that one), but on a computer, it will just shut down.
I would replace the power supply first, and then if you are still having problems, look into other fixes.
We are all curious like a cat. We wonder, we ask, we learn.
Please post back when a suggestion works, so that others may learn.