be quiet! Shadow Rock 2 Review @ OCC
 

"So let's talk about performance. It can handle the thermal load of normal daily use. Stock performance is just fine. Overclock and crank up the load, and, well, not so fine. I was expecting it to keep the temps down a little more. Add this to a case that is perhaps a little lacking in the airflow department on a warm summer day, and you may be bouncing off the thermal limits of the CPU. There are other coolers out there that are in the same price range that do a better job of removing the heat."

http://www.overclockersclub.com/revi...shadow_rock_2/