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    HP Zbook 15 G6 MW BIOS downgrade

    Discussion in 'HP Business Class Notebooks' started by martin778, Jan 7, 2020.

  1. martin778

    martin778 Notebook Consultant

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    Does anybody know whether it's possible to downgrade the BIOS on the HP Zbook 15 G6?
    They disabled undervolting and UV was a godsend for a 15 inch 8 core i9 notebook.
    It's now on version R92.
     
    martin778, Jan 7, 2020
    #1
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  2. Mr. Fox

    Mr. Fox BGA Filth-Hating Elitist®

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    It looks like it. See this post: http://forum.notebookreview.com/thr...r-firmware-update.831546/page-2#post-10981224
     
    Mr. Fox, Jan 8, 2020
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  3. martin778

    martin778 Notebook Consultant

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    Yeah the trick is - where is the previous BIOS version. It seems to be gone from the HP website.
     
    martin778, Jan 8, 2020
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  4. marckus

    marckus Notebook Enthusiast

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    You can find the old bios updates in the bios section bios update.png
     
    marckus, Jan 9, 2020
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  5. Alyosha2001

    Alyosha2001 Newbie

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    Martin778, could you please tell us how the noise is with the 8 core processor? Does it differ from the hexacore i7? You said you've undervolted it, did you also change the thermal pasta and pads? Do you use a custom fan profile (NoteBook Fan Control)? How is it now, undervolted, compared to normal one? And how much did you undervolt it?
    I don't have anywhere to test theese. I tested a i7 Zbook 15 G5, and was pleased with it after undervolting to about 100mV.
     
    Alyosha2001, Jan 9, 2020
    #5