|You've been asking about graphics cards & different hardware configurations for over a month now. In that amount of time, you should have done so much research that you'd be a self-taught graphics card/hardware expert!|
"it said- x2 Nvidia Gtx 650"
No, it says 2 x, not x2. It should be self explanatory, TWO video cards!
If you want to run 2 Nvidia cards, the only motherboard to choose from their list is the Asus Crosshair V Formula - Z, it's the only one on the list that supports SLi. And you'll probably want to choose a more powerful CPU than the FX-4130 so you don't risk bottlenecking the cards. A more powerful CPU + 2 graphics card means you'll have to choose a better power supply such as the Corsair 750W. And you should also get 16GB of DDR3-1866 to round out the configuration. By the time you're done, the total will be close to £900.
message edited by riider