I use 2 sp120 high performance edition fans on my h100i. I messed up a little when putting the cpu block on and I didn't have enough space to connect the usb cable that allows you to use the corsair link software. Instead of placing the block correctly, I put low voltage adapters on the fan cables. My fans run constantly with the max speed allowed by 7 volts. I was wondering how bad was it for my fans.