Additional fan on COOLER MASTER Hyper 212 EVO

I have one on mine and it's ~3-4C cooler under load and no difference at idle.

Unless you are overclocking your CPU, it would be a waste.

Duh...Wasn't looking at the Forum  

You may be able to get similar results by re-arranging your cabling to provide better airflow to the cooler.

I can vouch for this as well, plus it sounds cool...'I have push/pull   '

I have a cool master 912 HAF case and will install 6 X 120mm fans inside. Plenty -o- airflow I would think