Agree with above posters, my Winnie 3000+ Socket 939 A64 runs very cool. I use a Cooler Master ATC 620 microATX case and cut a 120mm hole above the CPU and put a 120mm fan grill in black to cover the hole. The heat sink I use is the Thermalright XP90 with a Panaflo L1BX 92mm fan sucking air off the heat sink and blowing straight up out of the 120mm vent. My idle temps are 33C with the fan running a 952 RPM. When 100% loaded down for an hour, the temp jumps to 45C with the fan speed increasing to 1500 RPM. Gotta love those Cool and Quiet Mobos!