I have a T-Bird 1.4 running in the mid to upper 40's under load (idle around 42ish) with a standard Taisol HSF (small quiet fan - nothing special). When I first installed the cpu the temps were running in the mid to upper 50's under load, so I installed a 92mm fan in the bottom of my case (had to prop the front up a little bit) and lowered the vcore a tad (default was 1.82 - lowered it to 1.70). The result was a full 10C drop - easy as that. A friend of mine has a 2500+ Barton and his runs around 50C. Another guy I know has a 2400+ and his runs about the same. The point is, no matter which cpu you're using the key is good case cooling (including where the case is located in a room and keeping that HSF dust-free) and proper vcore adjustment (provided you don't lower it to the point that it's unstable). BTW, my 1.4 isn't overclocked and I live in the south. Hope this helps.