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GTX 1080 Ti Bus Interface Speed only x8

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bojerka
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Friday, September 15, 2017 3:40 PM (permalink)
Can somebody help me why my GTX 1080 Ti SC2 Hydro Copper running only at x8 v3.0 under load?
 

 
 I trying many options like BIOS update, CMOS reset, unplug and clean that slot if isn't some dust inside but still nothing helping. Before 4 months I had non Ti version and that works normaly on x16 v3.0
 
Bios displaying too only x8

 
My spec: ASUS Z87-DELUXE, 4790K
post edited by bojerka - Friday, September 15, 2017 3:42 PM

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CPU : INTEL Core i7-8700K
GPU : EVGA GeForce GTX 1080 Ti SC2 Hydro Copper GAMING
RAM : G.SKILL TridentZ RGB Series 32GB DDR4 3200MHz 14-14-14-34
BOARD : ASUS ROG Strix Z370-F Gaming
PSU : PHANTEKS Revolt X 80 PLUS Platinum
Case : Phanteks Enthoo Elite
Monitor : 32" Samsung G75T Odyssey G7 240Hz
CPU block : Cuplex Kryos NEXT VARIO 1156/1155/1151/1150, PVD/.925 silver
Pump : D5 Next
Reservoir : HEATKILLER® Tube 200 D5
Radiator : HardwareLabs Black Ice SR2 360MP + The Black Ice Nemesis 280GTS XFlow
Fittings : EK-HTC 12/16 mm - Black Chrome
Fans :&nbs
#1

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    max883
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    Re: GTX 1080 Ti Bus Interface Speed only x8 Friday, September 15, 2017 3:46 PM (permalink)
    Make sure the gpu is propely seatet inn the pci expres slott
    #2
    bcavnaugh
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    Re: GTX 1080 Ti Bus Interface Speed only x8 Friday, September 15, 2017 4:10 PM (permalink)
    Update your ASUS Motherboard Bios.
    Pull the Battery from your MB for 16 Minutes.
    Test your card in your other PCIe X16 Slot.
    Z87 is also a very old Chipset.
    "Up to 1x16, 2x8, 1x8+2x4" What other PCIe Cards do you have Installed?
    Have you Asked or Looked Up this same issue up over on the ASUS Forums for your Motherboard?
    I would say it is a limit of your Motherboard and or Chipset that is causing your issue. 
    post edited by bcavnaugh - Friday, September 15, 2017 4:20 PM

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    bojerka
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    Re: GTX 1080 Ti Bus Interface Speed only x8 Friday, September 15, 2017 4:32 PM (permalink)
    bcavnaugh
    I would say it is a limit of your Motherboard and or Chipset that is causing your issue. 



    I hope you have right but funny is why non Ti version works properly on x16 v3.0

    CPU : INTEL Core i7-8700K
    GPU : EVGA GeForce GTX 1080 Ti SC2 Hydro Copper GAMING
    RAM : G.SKILL TridentZ RGB Series 32GB DDR4 3200MHz 14-14-14-34
    BOARD : ASUS ROG Strix Z370-F Gaming
    PSU : PHANTEKS Revolt X 80 PLUS Platinum
    Case : Phanteks Enthoo Elite
    Monitor : 32" Samsung G75T Odyssey G7 240Hz
    CPU block : Cuplex Kryos NEXT VARIO 1156/1155/1151/1150, PVD/.925 silver
    Pump : D5 Next
    Reservoir : HEATKILLER® Tube 200 D5
    Radiator : HardwareLabs Black Ice SR2 360MP + The Black Ice Nemesis 280GTS XFlow
    Fittings : EK-HTC 12/16 mm - Black Chrome
    Fans :&nbs
    #4
    bcavnaugh
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    Re: GTX 1080 Ti Bus Interface Speed only x8 Friday, September 15, 2017 4:35 PM (permalink)
    Different Core GPU and even Core Memory, Maybe that is why, you still should ask ASUS.

    Associate Code: 9E88QK5L7811G3H


     
    #5
    Sajin
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    Re: GTX 1080 Ti Bus Interface Speed only x8 Friday, September 15, 2017 7:09 PM (permalink)
    #1 Make sure no other expansion cards are installed but the 1080 ti.
    #2 Try running the card in another pci-e slot.
    #3 Reseat the cpu & check for bent pins in the cpu socket.
     


    See my current build here: https://forums.evga.com/My-bench-rig-unlimited-power-m3596024.aspx
    RTX 2080 Ti 4-way SLI?!?!: https://forums.evga.com/RTX-2080-Ti-4way-SLi-set-by-yours-truly-m2954756.aspx
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