Just been playing DOW 2 and my card hit 87C but the fan stopped at 75% whys the fan not cooling my card fast enough?
Its cooling it fine
I have great airflow in my case. While playing BC2, my 285 hits 88 - 90C. Depending or not if I have the AC on.
The fan will scale up higher if need be to not let it surpass 91C.
Just run Furmark
you'll see. Nothing to worry about!