Quote Originally Posted by techs
Here's a contrary view. Since CPU fans blow down toward the cpu I have found I can get better cooling with the rear fan blowing in. That way cooler outside air is blown over the cpu hsf and is blown down on the cpu.
This method increased the case temp but lowers the cpu temp.
In this type of setup a dual fan power supply would help by ejecting more of the warm case air out the top.
Or you could get one of the newer types of cases that have the "heat tube" as I call them that allow for the cpu to pull cool air from outside.