I am almost positive I have great contact. I am using Arctic Silver 5 I think. It was just what I had left over from an old build a few years back. I don't have anymore so I need to order a new tube of it but I will probably go with something better since times have changed and there seems to be much better stuff out there now. If I use prime95 within the first 15 seconds it is at 80c and keeps rising.