First try to start your system in the safe mode
if you able to start in the safe mode then update your drivers from the manufacturer site
And also Return BIOS settings to their default levels. An overclocked or misconfigured BIOS can cause all sorts of random issues, including BSODs
Let me if this help you then i am sharinga accurate guidelines given in a video tutorial . You can follow the link given below
http://www.youtube.com/watch?v=4o38NZNRO2oI hope you will resolve your problem