I have an old gateway computer that i am using as a kind of entertainment pc for plyaing mp3's. It has a 750mhz slot A athlon processor. The fan for the cpu is very loud and i want to replace it. I was wondering if replacing the fan would be sufficient or if i should replace the whole heatsink/fan. I am trying to get it as quiet as possible and have been searching the internet for a suitable alternative to my current heatsink. Any advice would be appreciated.