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  1. #1
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    ASUS Maximux X Hero - GPU doesn't work properly

    Hello,

    I've a problem with my new Maximus X Hero. When I use my dedicated GTX 1080 Ti the display of monitor goes on/off the whole time. The board came with the default BIOS 0402 (?). I updated the UEFI to the lastest version (0802). But this didn't fix the problem. After that I tried both PCIe-Slots and in either case the problem existed. Well, after that I tested the GPU in another system (Ryzen AM4 with a Crossfire VI Hero) and everything worked fine.

    If I use the integrated GPU from the 8700K there are no problems at all.

  2. #2
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    Maybe the Pressure from the cpu cooler is to high.
    Test if you loose a little bit the cooler screws.**

  3. #3
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    That's excluded. Screws are finger-tight. I think it's a problem with the board because the CPU with iGPU works.

  4. #4
    Tech Marketing Manager HQ Array Raja@ASUS's Avatar
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    Given it works fine with the iGPU, I'd look at sync issues between the graphics card and monitor. It's possible the cable you're using isn't capable of sustaining the applied resolution or refresh rate. Outside that, memory instability can cause the driver to crash/recover, but that would usually show issues on the iGPU, too, as it's more sensitive to memory stability.

    -Raja

  5. #5
    ROG Enthusiast Array Exalanoto PC Specs
    Exalanoto PC Specs
    MotherboardMaximus X hero Z370
    ProcessorI7 8700k
    Memory (part number)F4-3600C16D-16GTZR
    Graphics Card #1Asus Geforce 1080ti OC Gaming
    Storage #1Samsung NWME 960 Evo 250gb
    Storage #2Corsair 500GB SSD
    Power SupplyEVGA G3 850w
    Mouse Razer Naga
    Headset Logitech G933
    Mouse Pad Steelseries
    Headset/Speakers Creative THX
    OS Windows 10 64B pro

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    Try this.

    Disable windows update driver download, so that windows is NOT messing with youre drivers. (Many tutorials on youtube)

    Download DDU, uninstall the driver when the pc is booted to safemode.
    Restart the computer, then go to youre device manager and see iff you can find youre graphics card, and then uninstal it from there aswell. Again, restart youre computer and install the latest driver. Do not do a express inst, also check of the clean instalation iff possible.

    Also, make sure you uninstall the intel gpu, and disable it from youre bios.


    Remmember, the driver update function trough windows uptade is a pain in the ass..


    Also, make sure you have all the correct plugs conected from youre power supply to the GPU. If this does not work, i would consider trying another GPU in youre MB just to close out MB defect.

  6. #6
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    The GPU works fine with a Crossfire VI Hero and Ryzen R7 1700X. No problem with DP´, monitor or cable. Same GPU with the Maximus X Hero and 8700K does not work. The GPU is not the problem here. It's the Maximus Hero X motherboard or the 8700K. You can't use the 1080 Ti because the display's monitor goes on/off every single second.
    I tried both PCIe 3.0 slots. Nothing changed.

    I'm not talking about windows. This problem even appears when you are in UEFI.

    So I see two options:

    Maximus X Hero is broken or the PCIe-Controller within the CPU has problems.

  7. #7
    ROG Enthusiast Array Exalanoto PC Specs
    Exalanoto PC Specs
    MotherboardMaximus X hero Z370
    ProcessorI7 8700k
    Memory (part number)F4-3600C16D-16GTZR
    Graphics Card #1Asus Geforce 1080ti OC Gaming
    Storage #1Samsung NWME 960 Evo 250gb
    Storage #2Corsair 500GB SSD
    Power SupplyEVGA G3 850w
    Mouse Razer Naga
    Headset Logitech G933
    Mouse Pad Steelseries
    Headset/Speakers Creative THX
    OS Windows 10 64B pro

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    Try swapping the power supply...


    or reseat the cpu, check for bent pins, etc.

  8. #8
    ROG Guru: Gold Belt Array Menthol PC Specs
    Menthol PC Specs
    MotherboardM 10 Apex / XI gene
    Processor8700K / 9900K
    Memory (part number)2x8 Gskill Trident Z 4266/2x2x8 Gskill Trident Z 4500
    Graphics Card #1RTX 2080ti / GTX 1060
    Sound CardSoundBlaster Ae5 / Onboard
    MonitorBENQ 32" 4K
    Storage #1Intel 900p 480GB/Samsung 960 Pro 1TB
    Storage #2Intel 750 1.2TB/Plextor 1 TB 2X 950 Pro
    CPU CoolerCorsair H150i AIO / H1110i
    CaseCorsair 740 ? Lian Li Air
    Power SupplyCorsair AX 1200i / AX 1200i
    Keyboard Corsair
    Mouse ASUS Strix
    Headset HyperX Cloud Alpha
    Mouse Pad ASUS
    Headset/Speakers Logitech Z906
    OS 10 X64 Pro
    Network RouterVerizon Fios
    Accessory #1 Intel Wifi BT pcie card
    Accessory #2 Red Bull
    Accessory #3 English Breakfast Tea
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    That is a weird issue you are having and must be extremely frustrating, can you boot to UEFI using the iGPU with the Video card installed without the flashing? if so does the bios recognize the 1080ti correctly as Gen. 3 X 16 in the correct slot? Have you tried all the DP ports on the 1080ti?
    are you positive the Video card is seated fully, I have had seating issues before and bending the pcie bracket a tiny bit allowed the card to seat fully, PC cases are not always manufactured perfectly or can get tweaked slightly during shipping causing mounting issues, usually with inexpensive cases

  9. #9
    ROG Guru: Yellow Belt Array no1yak PC Specs
    no1yak PC Specs
    MotherboardMaximus Hero X I Wi-Fi/ Hero IX
    Processori9 9900KF/ i7 7700K both @ 4.7Ghz
    Memory (part number)Gskill F4-3200C16D / Corsair 2400 LPX
    Graphics Card #1Evga GTX 1070 SC ACX3 / Evga 1060 SC
    Sound CardEssence One DAC Muses edition
    MonitorEizo CG275W/ Dell U2719D
    Storage #1Samsung 970 EVO Plus NVMe / 950 Pro
    Storage #2Samsung EVO 950 Pro M.2 + 850 Pro 1TB
    CPU CoolerCorsair 150i pro/Noctua NHu-14S
    CaseCorsair 500D/ Corsair 450D
    Power SupplyEvga 650 P2 /Corsair HX750
    Keyboard Cherry MX6
    Mouse Corsair M65
    Headset/Speakers Corsair SP2500 + Senn HD650 + HD 600
    OS Windows 10 Pro x64 20H2

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    I know this is a long shot but, check to see if you have any bent pins in the CPU socket. I had a the same thing but mine was only on the desktop flashing on and off caused by the latest windows update.

  10. #10
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    Thanks for your replies. I had checked the pins from the LGA socket before I assembled the CPU. This is not my system I just assemble the parts. Things I already did:

    -I dismounted my Ryzen system and used all parts from the Intel PC except of motherboard and CPU. Everything worked fine.
    -I put the GPU into the last PCIe slot from the motherboard (lanes come from the chipset and not CPU if I'm right) and there were no problems.
    -Flashed BIOS 0802 via USB Flashback without CPU, GPU and RAM.
    -When using the iGPU there are no issues at all.

    I think the PCIe controller within the CPU is broken. *

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