Airflow is one of the most important parts of effective cooling, and the folks over at Tweakers Asylum want to show you how to make your own blowhole. So go check out their latest article entitled Blow Hole Case Mod Guide. here's a snip:
"Whether or not the impact of temperature will be something to worry about, keeping the inside of your case cool is very important. That is why, today the Tweakers Asylum will show the proper way to put a hole in the side of your case. And by proper I mean making sure to keep things safe as well."