I was looking into getting two more 90mm fans for the sdes of my case and also replacing the 80mm on my heatsink seing how it is summer now and 21cfm just isnt enough cooling. My question is the connectors are 3 pings on the SilentCats is it ok to run 3 of these off of my motherboard? Or will that cause a problem? Also my powersupply is an enermax whisper 475 watt.