My newly built pc won't turn on

My new build is completely unresponsive. I built my PC 2 weeks ago, and made a mistake bending some pins. Got a replacement, and installed it today. Even with the new processor no luck... My attempts of turning it on consist of me flipping the switch on the power supply, and pressing the power button on the front. After that I stare in awe at my PC doing utterly nothing.

Specs:
AMD A6-5400k

ASRock FM2A75M-DGS

Crucial Ballistix 4GB 240 Pin DDR3 1866 1.5V

Stock Cooler

Video Card (Integrated into processor)

Corsair CX430 430V

Western Digital 250GB 7200RPM

APEX SK-393-C

 

EDIT:I now can get the power switch LED to turn on, but I hear no sounds from the system. I also don't want to unbox my brand new monitor if its not gonna work...

 

 

 

Make sure everything is plugged in firmly, check if any pins are broken.

is the power button header connected properly?

 

Short out the power button pins directly on the motherboard, test outside the case first and put the pc together part by part so when it died completely you know which component caused the error.

Are you sure you plugged in all the front panel connectors properly?

Have you turnned  your psu off by mistake.

I know my PSU is on, and I know everythings inside firmly. I'll have to check the front panel connectors however.