Hey so built a brand new PC go to turn it on and nothing. Nothing in the PC turned on. I tested the psu via paper clip test, and it worked. So I know it's not that. I think it might be the motherboard but it's brand freaking new I don't understand how it could've broken. But note that I tried booting with only power sw front panel connector in. I also tried shorting the power pins on the motherboard and although I'm not 100%on how to do it I'm pretty sure it didn't work.