What kind of temperatures do you guys get with your Opterons?

I just managed to salvage a "broken" Opteron 165 off eBay (I had to bend a lot of pins back though ). I'm cooling it with a Thermalright XP-120, but even at stock it goes up to 50°C at load. At 2.6Ghz (stock volts) it goes up to 60°C.

Any ideas?