I have an ati all in wonder 9600 and the fan is making more noise than I like. I was wondering if the fan could be replaced or should be replaced? Should I contact ati because it is still under warranty or are there quieter and better fans out there to replace it with?

I would probably contact ATI in this case because of the fact it is under warranty...I had to replace my old EVGA Nvidia Geforce FX 5200 ultra fan because it went out of warranty...I did not find one that matched the holes on the card so just get some heatsink and superglue....let sit for hour then should be ready to put into computer and test it out...that is if you go that route