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  1. #1
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    PCI-E 8x instead of 16x

    I have an interesting question that I just can't seem to find the answer to anywhere. I am currently running a Crosshair V, 8120, and a 6870 DD XFX card. In GPU-Z, CPU-Z, and Catalyst, my link width/bus interface is only at 8x. Also, when i go into bios my gpu info area also tells me that it's 8x native. I have tryed reseating and I DO have all updated bios's and drivers for both mb and gfx cards. I seriously can't find out why I can't get it to go to 16x. I do have my card in 16_1 right now. I was thinking about trying it in 16_3 but that would be so close to my psu that I don't really think that would be practical. The only right answer on this one would be to leave it in the slot it's in. If anyone...ANYONE can help with this, that would be great.

    Extra info....everything plays fine. Just not sure why it would only run at 8x.

    Thanks in advance.

  2. #2
    ROG Member Array jediknight16 PC Specs
    jediknight16 PC Specs
    MotherboardMaximus VII Hero
    ProcessorIntel Core i7 4770K
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    Hi, I have the same problem here with Maximus VI Hero and 980 Ti Strix.
    No matter what I do, it won't work faster than 8x instead of 16x. I'm looing for help on the web, but didn't find solution yet.

  3. #3
    ROG Guru: Green Belt Array skellattarr PC Specs
    skellattarr PC Specs
    MotherboardCrosshair viii hero
    ProcessorRyzen 9 3950x
    Memory (part number)G.SKILL Trident Z RGB 64GB 4X16 3200MHZ
    Graphics Card #1rog strix gtx 1080
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    Monitoracer 28inch 4k
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    Storage #23x 3tb hhd/segate 10TB drive
    CPU CoolerCorsair Hydro Series H115i
    CaseThermaltake veiw 71 case
    Power Supplycorsair 1200w
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    Quote Originally Posted by Intrepidone View Post
    I have an interesting question that I just can't seem to find the answer to anywhere. I am currently running a Crosshair V, 8120, and a 6870 DD XFX card. In GPU-Z, CPU-Z, and Catalyst, my link width/bus interface is only at 8x. Also, when i go into bios my gpu info area also tells me that it's 8x native. I have tryed reseating and I DO have all updated bios's and drivers for both mb and gfx cards. I seriously can't find out why I can't get it to go to 16x. I do have my card in 16_1 right now. I was thinking about trying it in 16_3 but that would be so close to my psu that I don't really think that would be practical. The only right answer on this one would be to leave it in the slot it's in. If anyone...ANYONE can help with this, that would be great.

    Extra info....everything plays fine. Just not sure why it would only run at 8x.

    Thanks in advance.
    do you have the crosshair v formula non z or the z board? i have the non z and the top pci-e slot is 16x were the nest full size slot down is 8x then the slot next down below the pci slot is 16x and the botom one is 4x. if you have a card in 8x slot then both cards will run at 8x.
    Last edited by skellattarr; 12-16-2015 at 06:10 PM.
    amd ryzen 9 3950x
    CROSSHAIR Viii hero
    Corsair Hydro Series H115i
    G.SKILL Trident Z 3200mhz 64gb 4x16 timings 16,18,18,38
    asus rog strix gtx 1080
    TOSHIBA 3TB hdd 3x a total of 9tb, 10 tb hdd and a 1tb mushkin ssd
    corsair axi 1200i 1200 watt psu
    thermal take view 71 case

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