Mickey: How are PCIE lanes alotted to components?

Discussion in 'AMD / ATI' started by Nailezs, Oct 9, 2020.

  1. Nailezs

    Nailezs Guest

    Hey guys. I've been looking into ow PCIE lanes are used by components, and I some questions that I haven't been able to find answers to.

    The title doesn't really state my question(s) in a succinct manner, so I have an example.

    i5-10400 CPU
    supports 16 PCIE Lanes

    Z490 Chipset
    Processor PCIE config: 1x16, 2x8, 1x8+2x4
    PCH PCIE config: 24

    RTX-3080
    uses 16 PCIE lanes (right?)

    M.2 nVME drives
    use 4 PCIE lanes


    Do the PCIE slots all share the same 16 lanes?

    So, if the CPU only supports 16...

    How are PCIE lanes alotted to components?

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