M18X R2 and GTX 1080

Discussion in 'Alienware 18 and M18x' started by Rengsey R. H. Jr., Dec 27, 2018.

  1. Maxware79

    Maxware79 Notebook Evangelist

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    Would this mean that it would be possible to use the unused MXM slot for an NVMe drive?
     
  2. TheReciever

    TheReciever D! For Dragon!

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    Dont think so, cant run 2 GPU's in SG mode, so by the reasoning I dont think other devices would function either.

    Of course I cant say for certain. I lack that knowledge.
     
  3. Maxware79

    Maxware79 Notebook Evangelist

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    Ahh that makes sense, unfortunately. Was hoping the machine would realize it wasn't a GPU and let it work.
     
  4. MagicMike

    MagicMike Notebook Consultant

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  5. MagicMike

    MagicMike Notebook Consultant

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    When you say you cant run 2x devices in SG do you mean no power will be delivered to the secondary mxm port or that two actually running 2x cards in SG is not possible, I.e. they wont both work at the same time in SLI?
     
  6. senso

    senso Notebook Deity

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    It should work. Not being able to use 2 GPU's is kinda expected if they are not running in SLI, most likelly due to OS limitation, the slot should still be powered up and the PCIe connection should still be working, given that its the card connected into the slot that signals the system to enable PCIe communications.
     
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  7. MagicMike

    MagicMike Notebook Consultant

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    That's really what I am hoping would happen.

    So in MSI laptops then, where is the aux power for the 1080 coming from and what voltage / power is it?
     
  8. ssj92

    ssj92 Neutron Star

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    In SG mode, both slots actually work. Even BIOS will see two GPUs. I think the issue was with windows BSOD.

    So NVMe in Slot 2 should work.
     
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  9. TheReciever

    TheReciever D! For Dragon!

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    So maybe Linux might prevail where Windows fails? Color me surprised.
     
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  10. ssj92

    ssj92 Neutron Star

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    Yes, Linux might be able to handle the situation.

    Think about it, people have ran iGPU + 2x SLI GPUs on mainstream desktop platforms fine.

    I think it's just a matter of how things are wired internally on the M18x.
     
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