First time building a computer and it wont start

[AncientxD]

I have recently tried to build my own computer but when i try to external start it it wont start up, the fans for the heatsink and graphics cards work and the LED lights on it work but it wont show anything on my monitor or make any sound in my speaker.

 

[bignastyid]

http://www.tomshardware.com/forum/261145-31-perform-steps-posting-post-boot-video-problems

 

[Tradesman1]

May want to bench it, wrote a guide that can be found here:

http://www.gskill.us/forum/showthread.php?t=11279