Can i install both card in same Pc
If Is A yes how do i doit?
i have 1 PCI Express x16
And 1 pci free
If you are saying SLI which means you can run two GPUs at the same time, no you cant. The two gpus have to be the same //example you have a GTX280 and another GTX280 then you could be able to install it on the other pcie slot. You would also need a SLI bridge which should have come with your graphics card(it looks like a umm...a bridge) then you just connect both and there you go, you have 2x better performance. But as said you have to have 2 graphics card of the same series. And i noticed that you said u had a free pci slot, do you mean a pci or a pcie slot? Cuz that makes a hell of a difference. pcie are usually done for graphics card and a pci are done for other things. Hope this helped!