**Brand new computer, first thing to do is see if you can't get a warranty exchange replacement or the like**

I don't know if you can replace the fan on a graphics card, most of the ones I've seen, the fan isn't attached such that the user can snap on another as we can with CPU fans.

But first you need to find out which fan is the culprit and that can only be done by opening the case and turning the thing on, have a look, have a listen, find the thing that is making the noise.

An unbalanced fan can often make this kind of irritating noise that comes and goes.

A fan can become unbalanced by house dust on its blades. If you see dust, use a can of compressed air to blow it out and see if that helps. There are also other reasons for an unbalanced fan that can only be solved with fan replacement.


HTH,


--Mac