I have a C2D E6600 using an Arctic freezer 7 pro cpu cooler and artic silver 5 thermal paste. I'm using core temp to check CPU temp's. I was getting temps around 35-37 degrees celsius on both cores (under no load), which I think is about right. However, today I installed an 8800GTS graphics card and now core temp is giving me temps around 45 degrees (under no load) for both cores. Is 45 degrees too hot or about right?