PCIe x1 device in PCIe x16 slot and performance question

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raven1970

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Jan 1, 2012
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I got a good deal on a wireless network card, but it is PCIe x1. I have two (2) PCIe x16. One has my Graphics, so wanted to use the other. Will the graphics card continue to perform normally if I use the x1 card in the other slot? I read somewhere about lanes and such and did not fully understand. TIA

ASRock H97M Pro4 Manual
 
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I have the same setup: H97 (GA-H97M-D3H) board + wireless x1 (on x4/16 pcie) and a 7850 on a full x16 slot. Works just fine. This extra slot bandwith is provided by the mb chipset if i`m not wrong. The vga slot (16 lanes) is conected directly to the cpu.
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rgrigio

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Nov 16, 2015
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I have the same setup: H97 (GA-H97M-D3H) board + wireless x1 (on x4/16 pcie) and a 7850 on a full x16 slot. Works just fine. This extra slot bandwith is provided by the mb chipset if i`m not wrong. The vga slot (16 lanes) is conected directly to the cpu.
 
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Sakkura

Sakkura

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Aug 22, 2011
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Yes, it will work fine and your graphics card will not be affected at all. Technically you're actually better off than if you had a higher-end board with SLI capability, because your board won't divide the 16 PCIe 3.0 lanes (intended for graphics cards) to the two populated slots. Instead, the second slot gets a PCIe 2.0 x4 connection from the chipset, while the graphics card keeps the PCIe 3.0 x16 connection straight from the CPU.
 
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