Yea you're fine. Your vcore isn't high either. Just stay below 1.350v to be safe. The limit for sandy bridge was 1.5v and the limit for sandy bridge isn't exactly known yet (but just stay below 1.350v to be safe). I also have the 3570k, but with the 212 evo and got temps between 65-70c when running prime95 (4.5ghz tho). You might consider reapplying your thermal paste just to see if that's the issue. Also, thermal paste takes some time to actually set. Did you just apply it or has everything been set up for a while?