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  1. #1
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    Issue with first PCIe x16 slot on ASUS TUF x570 Gaming Plus MB - black screen crash

    I've built a new PC based on Asus TUF x570 Gaming Plus MB(bios version 1202) with Ryzen 7 3700X, 32GB of DDR 4-3200 RAM. I installed two OSes on it - Windows 10 build 1903, and Ubuntu 19.10. The problem manifests itself in both.

    Basically I first tried to use a MSI GeForce RTX 2060 Ventus 8GB OC card. It worked fine until I tried to install the GeForce driver on windows, or tried to enable NVidia drivers on Linux. Windows basically crashed completely with black screen. Linux crashed but came back to life after it unloaded the driver. Some errors from Linux are: "NVRM: RMInitAdapter Failed". After trying various things including:
    - looking very carefully with a dentist mirror that the cards are seating properly in the slot - everything looks fine, but still I triwed reseating them.
    - changing PSU to 1000W one
    - reinstalling windows and Linux
    - different versions of NVidia drivers
    - resetting bios settigns
    - updating bios
    - removing my M2 SSD to make sure it is not messing with anything.(there are no other devices installed)

    I thought this must be an issue with a GPU so I bought the second one of the same type. The second GPU behaved exactly the same. So I returned them and bought a Gigabyte GeForce RTX 2070 Super Gaming OC 3X 8GB - same thing happens.

    However, if I place the GPUs in the second PCIe x16 slot (the one that has no contacts in the right side of the slot) the GPUs are working fine but at PCIe x4 speed.

    I'm not sure what else to do. I'm planning to return the ASUS MB and replace it for a Gigabyte one next as I suspect it is the motherboard as it doesn't even have a way to disable PCIe 4.0 in the bios. People I talked with in the shop claim all those GPUs work fine on their x570 chipset based boards - but they all have Gigabyte and MSI boards and they lock PCIe to 3.0.

    Is this a failed motherboard? Should I exchange it for another ASUS TUF with expectation it'll work? Or can this be caused by the CPU perhaps? I believe first 16 lanes of PCI are connected directly to the CPU. Is it possible I have a dodgy CPU? (It was new and unopened, but who knows, it may be faulty).

    Any ideas how to troubleshoot it further?

  2. #2
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    Also during testing I managed to restart Windows once with one of the gpus in the pcie 16x slot and it actually started that time. I quickly opened device manager and saw there is a yellow mark next to the GPU and message to "reinstall driver". Knowing that Windows will restart the driver in few seconds I fired up gpu-z and checked what pcie lanes the card was using. It showed up as "PCIe 16x 1.1". This in my opinion proves beyond any doubt that electrically there is no problem as 1.1 pcie uses the same connections as 3.0 just at slower clock. The moment windows restarted the driver and tried to use it in 3.0 mode it crashed again. I moved the card to second slot temporarily.

    One thing I forgot to mention is that I successfully tested an old GTS250 card in the pcie 16x slot.

    This makes me think it is some compatibility issue.

    I have no idea why Asus decided not to give us an option to run pcie as 3.0 or 2.0 in the bios. I hope this stupid decision will be reverted in a future bios update.

  3. #3
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    Well, I tested a gigabyte board with the sam x570 chipset and the issue persists so it is either the CPU, or some incompatibility between pcie 3 16-lane gpus and ryzen 3 with x570 chipset.

    Is there anyone here that can confirm any rtx GPU works in the first pcie slot in 3.0 16-lane mode?

  4. #4
    New ROGer Array RedSector73 PC Specs
    RedSector73 PC Specs
    MotherboardROG CROSSHAIR VIII HERO (WI-FI)
    ProcessorAMD Ryzen 9 3900X 12-Core Processor
    Memory (part number)PVR416G413C9K @ 3600 14-15-14-28 CR1
    Graphics Card #1Gigabyte Aorus RTX 2080 Ti Xtreme WaterForce (GV-N208TAORUSX W-11GC)
    MonitorAsus ROG Swift PG348Q
    Storage #1ADATA SX8200PNP 1TB
    Storage #22 x Samsung SSD 840 EVO 250GB
    CPU CoolerCoolermaster Liquid Pro Master 360
    CaseEVGA DG-87 Gunmetal Grey Gaming Case
    Power SupplyEVGA SuperNOVA G2 750W Gold Power
    Keyboard Corsair K95 RGB Platinum
    Mouse Corsair Gaming Sabre RGB Gaming Mouse
    Headset ARCTIS Pro Wireless
    Mouse Pad Cooler Master MP750 RGB Cloth Gaming Mouse Pad Extra Large
    OS Windows 10 64bit Pro
    Network RouterRT-AC87U

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    Quote Originally Posted by Prblue View Post
    Well, I tested a gigabyte board with the sam x570 chipset and the issue persists so it is either the CPU, or some incompatibility between pcie 3 16-lane gpus and ryzen 3 with x570 chipset.

    Is there anyone here that can confirm any rtx GPU works in the first pcie slot in 3.0 16-lane mode?
    Sure I can, X570, RTX @ 16x

    Click image for larger version. 

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