My processor runs 64C under load, 1800+
The only problem I've had involved short circuiting the 12V and 5V lines modding a fan.... oops!
The bright side is I'm running it with a cheap aluminum hs, some crappy thermal pad that was on it, and a Vantec Stealth 80mm fan with a 60mm to 80mm converter, and its real quiet

the converter and the fan knocked me up 5 degrees C but at least I can't hear it doing it

But I hope the 7 volted fan will up my air flow and get it running cooler.