Hi, I am planning to buy the BeQuiet Dark Rock 4 Pro and the Msi X470 Gaming Pro Carbon for the future pc build. What confuses me is that the mobo supports 4 system fans (I will use all of them for the case fans) , 1 cpu fan and a pump. The cooler though has 2 fans. So will I need 2 cpu fan slots or their wires are connected by default to be put in 1 slot? Lastly if I need 2 slots, can I use the pump slot for the 2nd?