First check all connections, the fans need to be connected to a rgb hub and that hub needs to be connected to a lighting node, and all hubs and nodes need to be individually connected to SATA power. It is important to only use SATA power cables designed specifically for your power supply, mixing and matching power cables will permanently burn out your LEDs. Remember that the fans and strip should have default lighting during boot before the icue software even starts, whether or not this is happening should narrow down if it is software or hardware problem.... please provide more info!