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  1. #1
    New ROGer Array Petereustachio PC Specs
    Petereustachio PC Specs
    MotherboardAsus ROG STRIX X570 F-gaming
    ProcessorAMD Ryzen 9 3950X 16-Core Processor
    Memory (part number)G.Skill Trident Z DDR4 16GB Kit (2 x 8GB) 4400MHz CL19
    Graphics Card #1Radeon RX-5500 XT
    MonitorSamsung C49RG94
    Storage #1Corsair SSD Corsair 500GB Force MP600, M.2
    Storage #2SanDisk Ultra 3D SSD - 2TB
    Power SupplyBe quiet! Pure Power 11 CM - 600 W
    OS Windows 10

    Join Date
    Feb 2020

    Asus ROG STRIX X570, Inserting PCIe Card turns off video signal

    I have this hardware working with Windows 10

    - Asus ROG STRIX X570 F-gaming
    - CPU AMD Ryzen 9 3950X 16-Core Processor
    - Graphic Card Radeon RX-5500 XT
    - HardDisk Corsair SSD Corsair 500GB Force MP600, M.2

    Tried to insert a couple of different PCIe Cards, in different PCI slots but then
    I have no video signal, and onboard LED is White.

    If in Bios I disable the CSM (Compatibility Support Module) the system starts
    with video but then I cannot boot Windows 10 (is installed on M2).

    The PCIe Cards is:
    Delock PCIe, FireWire 800, 2/1 Port

    Is there a possible other bios setting to solve this ?

  2. #2
    ROG Member Array wim-bart PC Specs
    wim-bart PC Specs
    Laptop (Model)Microsoft Surface Pro 4
    MotherboardASUS PRIME X370-PRO
    ProcessorAMD Ryzen R7-1700 @ 4GHz
    Memory (part number)CMU16GX4M2C3000C15
    Graphics Card #1ASUS Radeon RX 580 Strix Top 8GB
    MonitorAOC Agon AG271QX
    Storage #1Crucial MX300 525GB (M.2)
    Storage #2Samsung 850 Evo 500GB
    CPU CoolerCorsair Hydro Series H100i v2
    CaseCorsair Crystal 460X RGB
    Power SupplyCorsair TX550M v2
    Keyboard Corsair K95 RGB Platinum Cherry MX Speed (US)
    Mouse Corsair Glaive RGB Black
    Headset Kingston HyperX Cloud II Gun Metal
    Mouse Pad Corsair MM800 RGB Polaris
    Headset/Speakers Logitech Z333
    OS Windows 10 Enterprise x64 1709
    Network RouterpfSense running on i5/12GSSDS/4GB/ESX6.5
    Accessory #1 Noctua NF-A12x15 PWM 120m
    Accessory #2 Corsair Air Series SP120 RGB LED
    Accessory #3 Western Digital Caviar Green 1.5TB (SATA2, 64MB)

    Join Date
    Jun 2017

    The issue is that you installed Windows with CSM enabled. That is, installed Windows in Legacy mode and not UEFI mode. And.... The RX card and other modern cards need to boot in UEFI modus. Also when CSM< is enabled, your IO and SSD performance is 5-10% less. There are some solutions.

    Solution one is. Leave CSM off and totally re-install Windows.
    Solution two is, place an older GPU and p[erform this:

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