XFX 4890 fan noise?

So my 4890 which I got around a year ago is making some really loud buzzing or vibrating sound at start up. I put my finger against the fan's centre to push it against the GPU and the sound stops. Is this a problem? It doesn't make the same loud buzzing sound under load, just at startup. Oh and the temps (idle and load) are fine too.

If it continues, just call in to XFX. They should be able to send you out a replacement if anything.

The fan is out of sync , Just clean it with some compressed air and see if it stops. 04dcarraher

^^^Do that. Even if it doesn't make it stop, keeping it clean will keep it from getting worse.