After reading a bit about installing AIO I began to wonder if I plugged mine in correctly. I followed the manual for the proper headers on the mother board but judging by what I read I'm not sure if it's right. My pump is plugged into the CPU_Fan and my radiator fan is plugged into CPU opt. I was reading that my pump should always be running at 100% and that cpu_fan is a controlled header and it will vary the pumps efficiency depending on the temp. I'm using a deepcool captain 120x and the mobo is a Asus Z170 A. The temps have been good, at idle it's been around 25c and under load for about 4-5 hours 45-48c