LPD8806 Arduino Uno RGB strip
Strip Wiring
  Black  - Ground
  Green  - Pin 3 On Arduino
  Red    - 5v from ATX PSU
  Blue   - Pin 2 On Arduino  


Your connection doesn't seem to be correct, I think you are following a wrong pinout.

Based on the designators of your provided image (viewed at the right side pads which are the same as the left side pads)



The pinout is:

Black: Data  
Green: Clock  
Red: 5v  
Blue: Ground