Originally Posted by XGC Forsakend
Probably the same way you do crossfire?
I don't have experience in either, but assuming there are options or configurations in the GPU's control panel.
1.Make sure the mobo can do sli mode, read the motherboard specs to be sure.
2.You will need another 760 GTX card to do sli, both have to be similiar in specs to do this.
3.You will need a sli bridge connector
"let me know when your broke trying to buy all this and we'll stop"
4.Make sure the psu is sli compatible and ready, check the wattage of how much you'll need for the system.
In all honesty I wouldn't even bother to sli anymore.
You have many good nvidia cards giving you what you need in screen sizes.