For anybody else who is having trouble with the H50, I have the cooler with a Phenom II 965 @ 3.8GHz. Originally, I was having heat issues too. I tried a different fan, different paste, etc. The one thing you can do to these coolers that will make a difference is to LAP THE BASE
. Originally, my CPU would push 62C+ under P95... after the lapping the cooler, I'm getting low 50s... instant 10C drop. The AS5 hasn't had a chance to fully break in, so the temps should come down even more. The contact base on the H50 is rough, and does not make good contact with the CPU. I used 400->600 grit sandpaper when lapping, and this is how I ended up with better results. If you take the time to lap this cooler, it will give you better results.