As long as they actually cool the inside of your PC and you dont mind the noise, than that number of fans is totally fine. I have 4 80mm case fans, 1 120mm case fan, 2 80mm fans on my heatsink, 3 80mm fans on, and the stock AMD fan on my graphics card. So I have 11 fans just like Robilar. I've tested around with fans, took some out, put them back in and I really do see a difference in temps. The more the better for me, if thats the case with you then keep the fans. Plus you got a fan controller, so that'll help reduce noise when you need to sleep or whatever.