I setup my computer as being a silent one. Currently I have only 1 120MM fan connected to my RAD on my corsair H55 CPU cooler. That is the only fan in my system. The fan is the Akasa 120MM Apache PWM silent fan. Which is dead silent. I also have a MSI gaming Gtx 980 where the fans only come on when its above a certain temperature. So in other words at idle my system is so quiet you don't even know its on. Idle temps seem good, CPU 30 degrees and GPU 45 degrees. At load after playing BF4 for a few hours last night my temps were CPU 68 degrees and GPU also about 68 degrees and yet my system was still near dead silent. The Akasa fan at idle spins at 500-600 rpm's and at load it got to 1000 rpm's. CFM on that fan is 55. Would this temps concern you or do they seem OK? I was thinking about perhaps adding one more Akasa fan in the front as in intake, but if it doesn't do much then I wouldn't bother.....
Cheers!
Cheers!