Ruiner, I'm using prime to get my load temps. As for the thumbscrews, I've tried everything from the recommended number of turns to cranking down the thumb screws so hard the springs were fully compressed. When I got them really tightened down hard it made a few degrees difference, but I don't like putting that much pressure on the core. My motherboard is an NF7-S, and it's cpu temp monitoring is absolutely worthless. So I use a hardcano 9 , and I mounted the thermal probe on the bottom of the cpu. If I were you, I'd check that block to see if it's flat and has been lapped properly. The baseplate on the one I got was way too rough, not to mention it was pretty convex. I've read where several other people got bad WW's from dtek too.
