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Taichi Z370 PCIe x16 lane sharing GPU + USB card

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cbp View Drop Down
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    Posted: 03 Oct 2018 at 3:03am

Hey all,

I have a question about how the PCIe slots work on the Z370.

I currently have a GTX 1080 TI on PCIe x16 (slot 2).

I want to add a USB 3.0 PCIe x4 expansion card to another PCIe X16 slots (Slot 4 or 5).
Will this drop the GPU slot from x16 to x8 or x4?
I don't want to have GPU degradation, but I need the USB 3.0 ports for VR.

Thanks,
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Post Options Post Options   Thanks (0) Thanks(0)   Quote cbp Quote  Post ReplyReply Direct Link To This Post Posted: 03 Oct 2018 at 5:38am
UPDATE: I installed the PCIe x4 USB card.

The GPU dropped to x8 and not x4.

Time to see if there will be any bottlenecks on x8 with the GTX 1080 ti.


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Post Options Post Options   Thanks (0) Thanks(0)   Quote Topherkins Quote  Post ReplyReply Direct Link To This Post Posted: 29 Dec 2018 at 4:19pm
I'll be doing the same thing with my Fatal1ty MB. I'm worried that dropping from 16x to 8x will impact the performance of my 1080 ti. Can you share your results plz? What expansion card do you have?
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