>The powersupply fan has always been very loud - on continuously, you can hear it out of the room so perhaps it is a suspect part and needs to be replaced as you suggested.
This probably has nothing to do with the computer running slower. However, no power supply fan should be that load and the supply probably needs to be replaced. I was referring to the CPU fan. Larry
>Shall I replace the entire power supply, upgrading from 200W or just the fan? Is it something a novice could do?
One would normally replace the entire supply if the power supply has a standard formfactor, etc., which it probably is if it is a Gateway. It is not a difficult job. I would get a 300 watt supply so you can use it for a future upgrade. Larry