2019 GTX 980 SLI P870DM-G done but not fully working !!!

Discussion in 'Sager and Clevo' started by Star Andy, Dec 21, 2019.

  1. Star Andy

    Star Andy Newbie

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    Hello comunity, I have a Clevo P870DM-G with i5 6600k, 16gb ddr4 2400, 180w gtx 980DT. One day i woke up with the ideea to try a second gtx980 to improve a little the gpu performance.So far so good. After the card arivved i putted in the laptop, all conected inclussive external 4pin power delivery to the gpu.s, i also buyed a secont 330w ac adapter(for a total of 660w). After all above both of the gpu.s are recognized in the system, i also have the Sli option in the nvidia control pannel...but...when i start Furmark Stress tool or Heaven engine the pc crash after 3 or 4 seconds.

    Can anyone from the forum can help me? maybe i need to mod the Bios,EC,Vbios...who knows?
    I apologize for my grammar but English is not my first language.

    Best regards, Andy
     
  2. Dr. AMK

    Dr. AMK Living with Hope

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    Nice work, would you please share some photos from the inside so we can see how did you manage the installation (Power/Heatsinks...etc). The vBIOS for both cards must be the same, and the The P870DM models always comes with 1 card, so maybe the BIOS needs to be modified to have the SLI option working as well.

    Good luck,
    Regards.
    -Ahmed
     
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  3. electrosoft

    electrosoft Tick Tock Clarice....

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    Do you have some pictures of the inside? It gives a better visual?
    Of the card(s)?

    I'll assume you tested the secondary card independently in the primary slot to make sure it is working?
     
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  4. joluke

    joluke Notebook Deity

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    Do GPU's have the same vBios? I'm pretty sure they need to have the same so that SLI works flawlessly
     
  5. Meaker@Sager

    Meaker@Sager Company Representative

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    Yes this is also important.
     
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  6. Vasudev

    Vasudev Notebook Nobel Laureate

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    Furmark is great tool to kill your GPU. Use Heaven or Superposition benchmarks or even Futuremark's/UL's 3dmark free version to test the GPUs.
     
  7. tps3443

    tps3443 Notebook Deity

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    Maybe he got everything working ok!


    [​IMG]
    [​IMG]
     
    Last edited: Dec 23, 2019
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  8. Meaker@Sager

    Meaker@Sager Company Representative

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    Still far better than the FX5800 days ;)
     
  9. Star Andy

    Star Andy Newbie

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    Hey NBR team, sorry for the long waiting but i was a little bussy with the holidays. First things first.
    -both of the cards have the same vbios
    -the cards were tested individually and they work like a charm
    -temperature of both of the cards don.t surpass 76 degrees celsius

    I am waiting for Suggestions.
    I have a feeling about power delivery on the cards. I think its something related to Bios/vbios
     
    Last edited: Jan 5, 2020
  10. Star Andy

    Star Andy Newbie

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    I will upload some pics today to have a look inside of the beast. Best regards Andy
     
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