Hey guys I just setup a new build and the case that I'm using is the 400r. I have the fan on the back of the case plugged into the motherboard. But the two 120mm front chasis fans are directly plugged in the power supply and are always running at full speed which causes a lot of noise. Should I replace those fans with something quieter or should I buy a fan controller to reduce the speeds of the fans? Also I only have 3 fans in the case besides the cpu cooler. Is that enough or should I add more.