This is a simple guess, but its possible. Did you forget to plug the heatsink fan in? If you plugged it in, then make sure the heatsink fan is working properly. 89c is very high and that must mean something is wrong with your cooler.
Nope, the fan spins. All pins are securely in. Should I try taking it off and put it back on? It says my system temperature is about 35* C? How can i take it off I was having some problems taking it off