Oh wow so many replies. Sovietonion yeah that's what I feared... @WoodenMarker I wasn't aware the cooler uses 120mm mounting holes, Phanteks has both normal 140mm fans and 140mm fans with 120mm mountings on their web site listed as compatible with the cpu cooler but I'm gonna trust you on that. Do you use the Akasa Apache or Rosewill Hyperboreas? How do they and the air penetrators compare noise-, performance-, noise/performance-wise? As for the industrial noctuas, I don't know it seems kinda silly to me to buy such an expensive fan only to remove part of its features.