These fans are FRUs(field replaceable units), they are cheap enough to replace not fix.
I have a Hercules 3D Prophet II GeForce 2 GTS 32mb it has a fan on it I recently got a new fan for my processor with LED?s which was a lot quieter then my first CPU fan I had but when changing to a new CPU fan I noticed my video card fan makes a lot of noise more of a vibration almost sounds like the fan is getting stuck but its not I can almost hear the fan blades move is there something wrong with my video card and what can I do to make the noise a more smooth sound I determined that this was the cause by removing the video card and then powering up and noticed the noise I described above were gone.

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