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Will PCI-E 2.0 card work in 3.0 slot if

I'm buying ASUS P8H77-V motherboard and a Core i3-3220 processor.
So the motherboard has PCI-E 3.0 x16 slot, but the processor does not support PCI-E 3.0.
I know that PCI-E 2.0 Cards work in 3.0 slots at 2.0 speed, but the question is would PCI-E 2.0 GPU work in 3.0 slot even if my processor does not support 3.0?
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  1. Best answer
    PCI Express controller won’t support PCIe Gen 3.0 add-on cards.

    When such cards will be installed, they will work in PCI Express 2.0 mode, which cuts in half the bandwidth available to them.
  2. Okay, thanks for answers
  3. Best answer selected by ltharis.
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