I have my power supply plugged into an electrical outlet and switched it on but nothing happens. This is my first PC build so it is likely that I am just missing the obvious but I have checked the wiring thoroughly and have found nothing wrong and I have gone through a couple of troubleshooting guides but had no luck. The only thing I have found through troubleshooting is that I have no motherboard speaker but I am not sure that that is much of a problem. I would really appreciate any help.