This tutorial will briefly show you the steps required to build your own PC compatible computer.
Open up the case and screw in the motherboard. How this is done depends on the type of motherboard and case that you have. Follow the instructions provided with the case and motherboard.
Connect the power supply to the motherboard. The power supply has two connectors coming out of it that are labeled P8 and P9. Connect these to the motherboard as shown. Remember to keep the four black wires towards the center.