I have an Opteron 180 runnning at 2.76 on a 939 Neo2 Platinum board. I have a Thermalright XP-90C with a medium speed 92mm fan on it. My temps range from 42-55 on the cpu, 26-48 on core 0, and 34-54 on core 1. My case ranges from 26-30. Would a new heatsink and fan be a good idea? I would like to take it to 3ghz but it seems my memory will not allow it.