5750 + HR 03 (4 HP's) + 92 mm fan and you score 70 deg @ idle? (yeah I now realized I misread the type...)
Are you sure the mounting is done right?
Don't get me wrong, I once put wrong spacers under a cooler and its base barely made contact with the GPU. Temps were bad in idle and dangerous under load (>60 and >100 respectively).
I mean, this card (similar to mine in terms of power & efficiency) barely needs cooling. C'mon, this is not a GTX470...
And yes, I too hate GPU's that are stupidly placed
Oops, misread which Tr you actually use... Still tho, temps seem way too high :/