I use the coolermaster k380 cabinet, which has an inbuilt fan in the front. I have bought three extra fans, but i am still confused on how i should set it up, please help me! There is space for one fan above, one in the back, one on the side panel and one on the bottom! With a preinstalled fan in the front(intake). How should i set it? And will there be any problem if i put an intake directly on top of my cpu stock cooler on the side panel?