I'm a bit concerned about the idling temperatures of my graphics card, GPU-Z says that its temperature is 62°C for one and 72°C for the other (it lists two GTX 590s but I only have one so not sure why that is).
The Asus tool reports 61°C as the temperature also.
Fan speed is at 47% (1800RPM).
At heavy use it can go as high as 90°C
Should I be concerned about this?