No Post New Build

[BradHunter]

Hi, I just finished installing everything on my first build and there is no post beep. All the fans and lights are turning on, the HDD is spinning, the gpu and hs are spinning. None of my usb devices are getting any power Any ideas what could be causing this. Thanks.
System specs:
Case: Antec Nine Hundred
Mobo: MSI P43-C51 LGA 775 Intel P43
PSU: CORSAIR CMPSU-650TX 650W ATX12V
CPU: Intel Core2 Quad Q9400
GPU: Nvidia Geforce 230gt
Memory: 4x2GB DDR3 1333
HDD: Western Digital Caviar
Blue 640GB 7200 RPM

 

[rolli59]

Follow this guide and see if you can get it sorted http://www.tomshardware.com/forum/261145-31-perform-steps-posting-boot-video-problems