Double check the air flow on your Evo 212. If i remember right, it flows air from the fan across the cooling fins, not through the fins and then the fan. Because if its blowing air across them, and you have it sitting in front of the exhaust fan, you are canceling the cooling out.
thank you for your comment, I did a check prior to installation, I have Flip the fan around to draw air from the fin out to the chasis fan and chasis fan out of the chasis. So the air is flow in one single direction only.