The Prescott's do have a tendency to run hotter. Mine runs about 15-20C over ambient. The 3.0 is not as bad as the 3.3 and 3.4 that I have. I tried the Zalman CNPS7700-AICu on mine and was not impressed. My 3.2 ran hotter then with the stock cooler

. The 3.4 ran about 4C hotter then with the Hyper 48 setup I have now (Hyper48 heatsink with a 90mm thermaltake silent cat fan).