Ok so I have been running my GPU fine now for about 2 weeks until just today I noticed one of the fans aren't spinning??? it tries to as if it was starting up but then just stops and repeats the process. It shouldn't be the psu because even without overclock or under any load it is fine (I am running a single asus 7950 on a 550w PSU.) This is still covered under warranty although if I send it in I will lose a lot of mining time :/ so I would preffer not to.
Fans die on GPUs all the time when they run 24/7. I had two out of my three original Sapphire GPUs experience fan failures in less than 3 months of running. They hardly lubricate the little sleeve bearings. Usually if you pry carefully you can pop up the motor hub and add a drop of oil to the shaft.
If the GPU is working (IE displaying to a monitor or mining without errors) it's not a PSU problem.