Hopefully I'm making this thread in the right place, I have been looking all over for a motherboard that will work with my crossfire 7970's and my asus xonar essence ST sound card, currently I cannot use both cards because my asrock z77 extreme4 motherboard only has one Legacy PCI slot right in between my two graphics card slots, I've been trying to find a motherboard that has a legacy PCI slot above the two graphics card slots. One I have considered is the asus Z87-A but I am not sure if I can put my graphics cards in the 2nd (PCI-E 2.0/3.0 x16) and 3rd slot (PCI-E 2.0 x4) without one in the first (if I put one in the first the legacy PCI port becomes blocked. If I put my sound card in with my current setup it blocks all the airflow for my first graphics card. Any advice would be appreciated. also would having one graphics card in a PCI-e 3.0/2.0 16x slot and the other in a PCI-e 2.0 x4 slot cause a noticeable loss in performance?
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10/9/15 at 6:02pm