Originally Posted by caravellex
The stock heatsink for the 4100 comes with a little circle that rests on the CPU. it doesn't even fully cover the CPu surface.
I found the problem! When I was moving the heatsink slightly it pushed out a lot of the thermal grease, and it ended up with not very much thermal grease on the connection point. When I took the heatsink out I could see the grease had collected near the edges.
I went ahead and bought a Corsair H60 water cooler, and played D3 again with core temp monitor up. Maxxed out at 32C!
A whole 30C drop!
thanks for help everyone.
Most of the 30C drop was from improper installation of the OE HSF. The OE HSF is more than adequate for OE operations under 100% load. Also be sure you are using Core Temp or some accurate software for temps as HW Monitor and other software can give incorrect temps.
Unfortunately the Corsair/Antec closed loop coolers are not very thermally efficient or cost effective and they can leak water damaging your expensive PC hardware. FYI- A quality HSF will perform better, cost less and not leak.