New build not turning on no more

AuroraHD

Honorable
Feb 18, 2014
262
0
10,790
So this build is a
I5 4670k
R9 290x
Maximus IV gene
Cooler master i700
Corsair 1600mhz 8GB

So when I first built it and turned it on, the computer turns on, but nothing on the Display. And the CPU LED light remains red. But after I rep lugged everything now the computer won't turn on. It only turns on if I reset the power supply it turns on for 3 seconds then turns off. Help?!?!