I can agree with one member's post from 2007. regarding a need for many fans cooling a radiator because a same thing I have with my loop. Ok it's made of probably the hottest video card ever HD4870x2 together with i3 cpu both at default speeds. Rest of the system is Swiftech D4 pump, triple radiator and EK Waterblock reservoir and cpu block. I have three Scythe fans with max speed of 1900 rpm usually set at 1400-1600 rpm and they are taking out a very hot air into the case. This could be a good thing meaning a cooling is really working it's job but I think one more radiator could be a solution so fans could work at lover speeds 1000-1300 rpm and without many noise what is my goal.