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Question Regarding SLI and PCIe Lanes..

Hey guys, i'm planning on purchasing an i7 6700k and a MSI Z170A XPOWER GAMING TITANIUM EDITION ATX LGA1151 Motherboard which as 4x PCIe x16 slots

I plan to run GTX 1080's in SLI

To my understanding it would be optimal to run the cards in the 1st and 3rd lane with a NVIDIA HB Bridge (1 slot spacing) for x8 x8 configuration.

I want to avoid as much performance loss as possible..

Is there something I'm missing? Is there a better way to place these cards? I don't intend to use the other lanes I just want the extra spacing for air flow.

Any help is appreciated as this is stopping me from purchasing my entire build.
6 answers Last reply Best Answer
More about question sli pcie lanes
  1. No, x8 is the normal config for SLI
  2. So I have the right idea? Put the cards in slot 1 and 3 with a 1 slot spacing HB Bridge and I won't suffer any performance issues?

    I really have zero knowledge on the subject and am completely confused by this..
  3. Yes. All SLI run at x8, as the CPU only provides 16 PCIe lanes. You will be fine and are doing it correctly.
  4. Multipack said:
    Yes. All SLI run at x8, as the CPU only provides 16 PCIe lanes. You will be fine and are doing it correctly.


    Thanks a ton, with the cards being in the 1st and 3rd slot I would have to purchase a 1 slot spacing HB Bridge? Just confirming!

    Again thank you!!
  5. Best answer
    Austin_Dish said:
    Multipack said:
    Yes. All SLI run at x8, as the CPU only provides 16 PCIe lanes. You will be fine and are doing it correctly.


    Thanks a ton, with the cards being in the 1st and 3rd slot I would have to purchase a 1 slot spacing HB Bridge? Just confirming!

    Again thank you!!


    Yes 100% although most SLI capable cards come with a bridge these days. 1 and 3 are exactly where you put them. If they aren't identical, put the better one in the 1st slot and use the lesser one as a slave, but obviously best to SLI two identical cards.
  6. Yes I was be purchasing 2 of the same cards, thank you for your help.
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