Trobuleshooting!! Starting Up Error

[Coalblackbird]

Hello please help!!!!,



I just built a 2000 dollar pc and its not booting properly. It keeps trying to boot but then it goes off. Its a pattern like this, on off on off. Could you please tell me if I did something wrong?

I checked that every power cable was connected.

 

[C12Friedman]

Welcome to Tom's Hardware Forums,
A little more info may be helpful here, what components? Have you been through this guide yet? http://www.tomshardware.com/forum/261145-31-perform-steps-posting-post-boot-video-problems