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  1. #1
    ROG Member Array
    Join Date
    Aug 2018
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    Unhappy Crosshair VII Hero wont run PCIe x16??

    Hi all. Having trouble running my GPU at full lane bandwidth (yes it matters, no I dont want it running at x8)

    I'm NOT using M.2_2 and im NOT using PCIEx8/x4_2

    I've tried:
    - changing the BIOS settings to force M.2_2 disablement
    - removing PCIEX4_3 SSD
    - tried a different GPU

    Im on the latest release BIOS 0804

    What else can I try? Do I have a faulty motherboard?

    SIV included for reference

    full list of slots and installed devices

    PCIEX16/8X_1 = 1080TI
    PCIEX1_1 = EMPTY
    PCIEX8/X4_2 = EMPTY
    PCIEX1_2 = EMPTY
    PCIEX4_3 = Intel 750 PCIe 1.2tb SSD
    M.2_1 = Samsung 950 Pro 256gb SSD
    M.2_2 = EMPTY
    Miniatura de Adjuntos Miniatura de Adjuntos C7H pcie lanes.jpg  

    siv.jpg  


  2. #2
    ROG Guru: White Belt Array
    Join Date
    Nov 2014
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    Posts
    113

    - Take a screenshot of this software and upload here for debugging https://1drv.ms/u/s!Atmpv-6qHr_6n5t_o6XtHdvTAMhuhw
    - Try re-seating and cleaning pins of both CPU and GPU
    - Try a different CPU if available
    - Try CMOS clear
    - Worst case, could be a bad board

  3. #3
    ROG Member Array
    Join Date
    Aug 2018
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    see attached

    ill try clear CMOS in the near future
    Miniatura de Adjuntos Miniatura de Adjuntos c7h_test.jpg  

    Last edited by cheddle; 09-07-2018 at 10:40 AM.

  4. #4
    ROG Member Array
    Join Date
    Aug 2018
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    11

    RESOLVED: I reverted back to prior bios... no fix...

    tried another GPU and it was getting 16x. isopropyl cleaned the 1080ti. now its getting 16x! solved.

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