It seems a little high for your stock temps, and definitely way too much for your overclock. Try not to go over 75*c as not to significantly decrease your cpu's life. Are you using the thermal paste that come with your hyper 212+? Id recommend that you look into something a little better like arctic silver 5, and make sure your applying not too much or not too little.
Yeah, I wanted to test and compare thermal pastes, so I'm currently using the CM paste that came with it. I had a feeling this was my problem. To follow up though, when you say 75*c you're talking core temp, correct?