those temps i would say are fine for that O/C. I have seen lower but then i have also seen higher. what cooler are you using and is there any scope to improve your case airflow?
you have an unstable overclock, more than likely. Back it off a little bit and let it run some more. those temps are really good for that much of an overclock.
Isn't the limit 90 or 100 degrees celsius? It's higher than I would like, but is it stable? You won't be running it like that all the time. Prime95 is designed to stress the chips to find any instability. If it's under a normal load and not at those temps constantly, then you should be fine.