Watch this video, if it doesnt work it means your PSU messed up. Which means you have to replace it.
YAY! my power supply works... now what?
I unhooked everything and remounted my motherboard and the same thing happens. Safe to say I return my motherboard?
I read online that the paper clip test may not be sufficient and that I should hook the PSU up to a hard drive and see if it powers it, but I tried that and it didnt seem to power up (no noise).