Add GTX compatibility in bios Clevo P870DM-g

Discussion in 'Sager and Clevo' started by runix18, Jul 20, 2021.

  1. runix18

    runix18 Notebook Consultant

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    Hi guys, I recently done the hardware mod for the Clevo P870DM-G following this guide: http://forum.notebookreview.com/threads/...upgrade.814711/

    Added GTX 1070 G Sync, installed fine with driver mod.

    My problem is that in bios the card it is not recognized, on the GPU says unknown. The second GPU FAN of the laptop not working because it does not recognize the card. I would like the second GPU fan working as well (just like in the case of 980DT GPU)

    Need help in adding this card support in the bios that the second fan will work. Or mod the bios for card support.

    Running stock 1.05.07 gsync bios.
     
    Last edited: Jul 20, 2021
  2. Meaker@Sager

    Meaker@Sager Company Representative

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    It's not so much that the card is not recognised in the BIOS, that's just a lookup table to give a display in the BIOS, it does nothing more.

    The modified BIOS will need to treat the card like the 980 DT.
     
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  3. runix18

    runix18 Notebook Consultant

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    Yet, that is pretty much the plan. Hope that someone can make it possible.
     
  4. runix18

    runix18 Notebook Consultant

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    @Prema @dsanke and other bios gods out here, any help?
    Thank you in advance.
     
  5. electrosoft

    electrosoft Perpetualist Matrixist

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    I had this problem with my original P870DM-G when I upgraded to Dsanke BIOS as my 980DT GPU became "unknown" and the second GPU fan didn't work defaulting to a single slot GPU detection status.

    I ended up using HWinfo fan controls to enable the second fan and that worked fine but still didn't address the core issue of native fan support.
     
  6. runix18

    runix18 Notebook Consultant

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    I found something interesting while reading fan speeds with HWinfo.
    When Fn+1 is on, hwinfo can read the speed of all 3 fans, and also it shows me that GPU fan 2 is engaged at a temp reading of 1.
    How can one make that the GPU fan 2 will be engaged at the GPU 1 Fan temp (GPU temperature). How can one make GPU 2 FAN to be ganged with GPU FAN 1.

    UP
     
  7. runix18

    runix18 Notebook Consultant

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    Btw @Khenglish, what will happen if i connect the second gpu fan to the first gpu fan header with a y splitter (for them both to work in parallel)? Will I fry the IC driver because going over 0.5A?
     
  8. Khenglish

    Khenglish Notebook Deity

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    It's probably fine, but I recommend looking up the fan IC chip number and checking its rated current drive capability. You don't want to be like EVGA on the RTX 3090.
     
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  9. runix18

    runix18 Notebook Consultant

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    Thank you.
    Looked at the datasheet, and the chip max out current is 1A (or 5w). So in theory it could power two 0.5A fans in parallel?
     
    Last edited: Jul 29, 2021
  10. Khenglish

    Khenglish Notebook Deity

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    Yup, sounds fine to me.
     
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