Originally Posted by ciarlatano
First off, if you run the two intakes and single exhaust at the same speed, you already have positive pressure.
Second, I'm going to throw a curveball at you......go dig out those F140MP fans that came with your case (provided it came with the MP style, and isn't an older case that came with the SP) and try them as intakes. In the lower rpm ranges that you are going for they move more air with less noise in this application than the Noctuas that you replaced them with.
Damn. I already throw them in the bin unfortunately (the mp)... which fan you recommend buying then? P.S I use the provided dust filter... shouldn't static pressure fan be better for this?
Also, there are 2 intakes and 1 exhaust but didn't you count the D15 fans?