I had issues with determining the fan set-up and control with the fan headers included in the case. This was my first build so I was kind of learning along the way. Still have to go back and probably tweak the fan set-up. Replaced all of the stock case fans with NZXT. Not so impressed with those and should have ordered the Noctuas. Machine is running at 32-38C most of the time under moderate loading. I use the machine for 3D visualization and CAD work so the real test will happen when I start doing some heavy V-Ray rendering. Have not gone into over clocking yet.