Asus Rampage V Extreme - PCI for Gpu

Jul 21, 2018
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I modified an old server case and found that I can't put the GPU in the 1st PCI (the top one, PCIE_X16_1) because there is no way out.
What other PCI would I use for the gpu (with the others I have no problems) and if I would have any performance problems or something else.

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