Not quite sure whether this is the right area to post this but here goes. I have an NZXT H440 with a h110 in pushpull mounted at the front with a AF140 exhaust at the back and 2 AF140 exhausts at the top. The AF140's at the top are pretty old so when changing RPM one of the fans seems to make a shaking noise which is kinda annoying but tollerable. These fans are rated for 66.4 CFM at full speed. My question is whether it would be beneficial if i took out these fans and mounted 3 NZXT's FN v2 120mm fans which even at full speed are silent. They are rated for 45 CFM