? about intel haswell with Z97 chipset

Discussion in 'Processors and Motherboards' started by BigXor, Sep 9, 2014.

  1. BigXor

    BigXor Active Member

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    My MB has 4 PCIe connectors that run at x8 speeds when all are populated. I thought with intel haswell there are only 16 PCIe lanes.

    How do they get a total of 32 PCIe lanes?

    (I'm new to the intel platform, so be kind).
     
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  2. MiniKnight

    MiniKnight Well-Known Member

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    They use PCI-E switch chips. In concept similar to a networking switch. So you have 6x8 PCI-E lanes. 4x8 to the slots and 2x 8 (or 1x16) to the CPU.
     
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  3. BigXor

    BigXor Active Member

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  4. Patrick

    Patrick Administrator
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    I have not looked at that particular design. With current technology the network switch is a good analogy. If you were doing some sort of CUDA hadoop - might get nervous. Likewise if you are in a storage benchmarking competition. Otherwise, I would say if the cards all work then you should be OK. Compatibility is usually the trick with the switches.
     
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  5. BigXor

    BigXor Active Member

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    Excellent, both of your replies are helpful to my understanding.

    I'm using the Gigabyte Z97X-Gaming GT motherboard as a media server in a Norco RPC 4220 case.
     
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