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  1. #1
    ROG Member Array
    Join Date
    Dec 2011

    Any B550/X570 boards with a second PCIe slot controlled by CPU? (not chipset)

    I'm looking for B550 or X570 boards that do NOT use the chipset for the second PCIe slot and instead uses the CPU PCIe lanes.
    This is a requirement for my capture card. It will be used with a Ryzen 3600.

    I'd prefer a B550 board because i'm looking for as cheap as possible, but if X570 boards only have this option then i'll go with one of those.

    Any suggestions?

  2. #2
    ROG Member Array
    Join Date
    Dec 2011

    What about the ROG Strix B550-E Gaming? It says:

    2 x PCIe 4.0 x16 (x16 or dual x8)
    AMD B550 Chipset
    1 x PCIe 3.0 x16 (x4 mode) *
    2 x PCIe 3.0 x1

    So would a GPU at x8 speed and x4 capture card definitely work on the CPU's PCIe lanes? Anyone here have this board?

  3. #3
    ROG Guru: Brown Belt Array RedSector73 PC Specs
    RedSector73 PC Specs
    Laptop (Model)FA506IU-AL130T x 2
    ProcessorAMD Ryzen 9 3900X 12-Core Processor
    Memory (part number)4 x G.SKILL F4-3800C14D-16GTZN 14-16-16-36 Samsung B-Die
    Graphics Card #1Gigabyte Aorus RTX 2080 Ti Xtreme WaterForce (GV-N208TAORUSX W-11GC)
    Sound CardArctis DAC
    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

    Join Date
    Apr 2018

    Any B550 or X570.... none of them use chipset for second PCIe.

    Here try reading this and see if helps you out, I know its a lot to get your head around at the start and can be confusing

    Also, PCIe Gen 4 specification is quite bandwidth upgrade over PCIe Gen 3.0 specification.

    X570 has more of everything and is a great overkill/future position.

    Hope you find this helpful.
    Last edited by RedSector73; 01-05-2021 at 10:34 AM.

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