Watch for the motherboard flash display screen when your system begins for extra information. Consult your motherboard handbook for detailed diagrams and directions about the identical. To get your entrance I/O to work, you have to plug in the cables into the motherboard. The front headers are located at the bottom of the motherboard and are labeled. All you have to do is match the names and plug them into the proper headers. Now that the PSU is as an alternative, all you want to do is plug in the completely different components.