Heat-sink Problem?

[darkrai531]

So recently,i added a new gpu to my pc,but i doubt it has anything to do,but oh well.
My fan ahs been making strange ''vibrating'' noises.....
sometimes when playing gta iv or just cause 2 it get pretty noise,do i need to clean?

 

[rolli59]

Cleaning is always a good idea but it can as well be that the fan is naturally out of balance.