Hi Span_Valalo
If you haven't already, join "Nvidia Sli Club" which is at the Nvidia site.
http://www.nvidia.com/page/home.html
You will find lots of relevant information there, also help with you cards as to O/C. There are different threads for each series of Cards, just put your questions there just the same as you would here. The only thing is, they will scan your system to make sure it is a "SLI" system before they will allow you to join. If you have a "Genuine" SLI system and not a "Hybrid" there should be no problems.
Cheers
Rick