Hey! so i recently bought the the Deepcool matrexx 40 case and I plugged everything in that was needed but when I turned it on no fan rgb or no fan movement besides the CPU fan that came with it the CPU. Do I have to buy a cable or something? all the fans came pre-installed and connected on some sort of chain in the back of the case. please help! i dont see any connection or anything, all the case fans go into a chain on the back, and no wires to any fan connectors/pins/slots.