Quote Originally Posted by Eddy_EK
Your temps are too high... should be about 40 °C idle and +6-8°C load.
Please check the contact of GPU!

What is your WC setup?

The reason his temps are as high as they are is because is radiator is saturated. It doesn't have the dissipation capabilities necessary to handle the heatdump of an entire 8800GTX card, dual core cpu, both overclocked and probably overvolted. He probably mounted the block just fine, but his temperature deltas are high, and even his idles are high because his rad is simply choking.