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Pci-e 2.0 x16(x4 mode)

Hello,

I currently have a GTX 560 Ti and I am planning to SLI but the other pci-e slot says pci-e 2.0 x16(x4 mode).. and the current one I am using says pcie 2.0 x16 only. What will happen if i installed another 560 Ti on the pci-e x4 mode.

here's my mobo..
http://www.asus.com/Motherboards/Intel_Socket_1155/P8Z68M_PRO/#specifications
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  1. Whats the mobo?
  2. Best answer
    ivananonymous said:
    Hello,

    I currently have a GTX 560 Ti and I am planning to SLI but the other pci-e slot says pci-e 2.0 x16(x4 mode).. and the current one I am using says pcie 2.0 x16 only. What will happen if i installed another 560 Ti on the pci-e x4 mode.

    here's my mobo..
    http://www.asus.com/Motherboards/Intel_Socket_1155/P8Z68M_PRO/#specifications


    Don't do it for three reasons:

    1) A graphics card in the second slot will run at X4, bringing down the performance of both cards.
    You may actually do no better than a single card.

    2) Because of the close proximity of the cards, the top card will have a heat issue. The bottom card will restrict the cooling air to the top card.

    3) With two cards, you will be exposed to microstuttering.

    I have the same P8P67M-Pro mobo, and it is a good one. Early on, I had thoughts of such a graphics upgrade path.
    Really, it would be better to just sell your current GTX560ti and replace it with a stronger single card. Assuming you have the requisite 700w psu to run sli, you also have the psu to run any single graphics card made today. Even a GTX690.
  3. Best answer selected by ivananonymous.
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