I have two Iota DLS-90 switching power supplies that I connected together in parallel to get 180 amps for a straight 8 pill. I have noticed that the fans cycle on and off on only one of them. I currently only have a straight 4 pill connected to them. Is the fans running on only one unit because its not pulling enough amps to tax both of them? I currently have it wired with 8 gauge connecting the supplies and 4 gauge coming out of only one supply to my quick connect for amp. Is there something else that I need to do?