You'll find that the most common source of the problem when a system inexplicably fails to power up id the Power LED connector being reversed. In fact, it's quite crucial to have the front panel connectors correctly attached, as the various wires on the connectors have specific purposes. All connectors should be facing the same direction.
ok I'm going to work on that and make sure it's all connected right. So since I'm gettin a led lighted up, It's not the power supply problem? I also saw a led lighted in the area where ethernet is located so it couldnt be power supply problem right?