i have a rig with an opty 146 @2.9 in and the temps are very high even with almost stock volts.

i have a thermalright xp-120 with a vantec stealth 120mm fan onit, are they good?
which i was told was a good heatsink, but when i touch it i feel the bottom heatpipes are hot but the top ones are room temp... and the cpu gets into the 60s.
its also got a pin missing socket 938 would this contribute?