Hey guys I just built my pc and it wont turn on when I press the power button....no fans spinning...no lights...no sound from the speaker....nothing I posted on this forum about my parts and my case has a usb 3.0 and 2.0 port and im not hooking the usb 3.0 cable up to anything because my motherboard doesnt support it....is that possibly why it wont start..? Could it be my power supply? I was confused when it came to hooking up all the power supply cables and I had trouble getting my 24 pin connector in but I got it in after pushing and wiggling it...now my hands hurt.