I get 62.8°C in Prime95(in-place large FFTs) with stock cooler.
This worries me only because I've got pretty decent case (Fractal Define R3) with additional front 120mm Fractal fan (so all together that's 2 in front and 1 in back, all 1350rpm), my ambiental temps are around 20°C and case sits on desk without any obstacles...
I'm getting Noctua nh-d14 in short time, but should I also get additional Fractal 140mm fan and place it on top of case?
Some additional info: idle temps: CPU=37°C GPU=40°C
temps after 1 hour of StarcraftII: CPU=57,5°C GPU=71°C
specs: Gigabyte GA990xa-ub3
AMD Phenom II 955 BE
XFX 6950 1Gb,dual fan version
AMD says max temp for this CPU is 62°C, so I'm not quite relaxed
For stress testing I think its fine to hit 63C, but I wouldn't let it stay there for any significant amount of time.
I agree that this is normal for the stock heatsink, which is not very good. You don't need a Noctua D14 to hit good temps. But if that's what you want and it will fit in your system then that will be good. I wouldn't do any overclocking on that HSF, wait until you get an aftermarket cooler.