New Build won't start

[snovtra]

Hi all,

I recently did my first build desktop with the following hardware;

Motherboard: ASUS M5A97 EVO
CPU: AMD FX 4100 3.6Ghz
RAM: Corsair Vengeance 8MB 1600hz
Graphics: EVGA GTX 560 1GB
HDD: Western Digital Caviar Blue 7200 RPM, 1TB
Drive: Sony Blue Ray/DVD RW-R
Power: XION 850W Modular
Tower: MSI Raptor

After all hardware was mounted and cabling connected I went to power on the system and none of my case fans, cpu fan, or Graphics card fan started. My HDD and BD Drive did not indicate any power to it. At first I assumed that my power supply was not sending power to the mother board, but when I checked the power LED on the motherboard it indicated it was receiving power. I am not sure why none of my other devices are not receiving power. My power supply is modular and all components that are not on are fed by the modular cables, I am not sure if there is a problem with the modular cables feeding them power or if there is a problem with my motherboard. Can anyone please shed some light on this and what troubleshooting methods I can do to help narrow the problem down.

Thank you for the help in advance.

 

[kudos]

Worth going through this tutorial first:
http://www.tomshardware.co.uk/forum/261145-13-perform-steps-posting-post-boot-video-problems

If you have already it's probably worth mentioning it as it'll increase the chances of you 'll get a response.