[Guide] How to take full control of the i7-8750H (Advanced version)

Discussion in 'MSI' started by hackness, Sep 19, 2018.

  1. LoneSyndal

    LoneSyndal Notebook Deity

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    Would you happen to know which version or at what date this change was implemented? Or do you think Svet will be able to do his magic on current version?

    Sent from my SM-N975U using Tapatalk
     
  2. hackness

    hackness Notebook Virtuoso

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    Svet might be able to do something able this.

    But I remember the earlier BIOS of the GS65 doesn't have this problem, only the newer GS65 has.

    You can also try flashing to an earlier version.

    These are the GS65 9SE bios that's still available to download from MSI:

    https://download.msi.com/bos_exe/nb/E16Q4IMS.10A.zip
    https://download.msi.com/bos_exe/nb/E16Q4IMS.10B.zip
    https://download.msi.com/bos_exe/nb/E16Q4IMS.112.zip
    https://download.msi.com/bos_exe/nb/E16Q4IMS.116.zip
     
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  3. bezeek

    bezeek Newbie

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    I was already on 10F, but it shipped with 10D so I tried a downgrade to 10C. Still no luck.

    BITS seems to be a dead-end for troubleshooting this, and it's a real shame it hasn't been updated for newer CPUs.

    I'll likely fire up a Linux USB later just to confirm the problem isn't exclusive to Windows. I'm running out of BIOS options to fiddle with and I'm still suspicious that it's an ACPI issue, though it seems absurd that this machine would ship with an 8-hour battery claim without working C-states.

    Any other advice is quite welcome.


    If you talk to Svet about that, please do post back. My 8SF won't accept changes to the flex ratio either (on any BIOS version) and it's kind of annoying.
     
  4. dmemon

    dmemon Notebook Enthusiast

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    I had a similar issue uninstalling IRST ( intel rapid storage technology) helped. Also, if I am on High Performance power plan in Windows C-state dont work for me.
     
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  5. bezeek

    bezeek Newbie

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    I've got the SATA controller disabled in BIOS but forgot to remove IRST, so that's gone now. I totally forgot about Windows power plans too!

    Still can't go deeper than C3, but at least that's two more variables eliminated.

    -- Update --

    Spent a bit of time fiddling around in Ubuntu (just tools like fwts and cpupower to check for obvious problems), lightning struck a tree on the other side of the world, and package states as deep as C8 started working in Windows. I do indeed need to be on Balanced or Power Saver to go deeper than C3. (Why MSI?)

    Sounds like the whole issue was a fluke, made worse when I stopped thinking about which power plan I was on.

    Thanks for the sanity checks folks!
     
    Last edited: Feb 24, 2020
  6. LoneSyndal

    LoneSyndal Notebook Deity

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  7. Ricsi

    Ricsi Newbie

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    Hi, thanks for the guide,
    I managed to OC my stock 2666 19-19-19-42 to 3200 17-17-17-41. Could not pass 3200 so lowered the primary timings, so far it’s stable.
     
  8. greninga

    greninga Notebook Evangelist

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    Hackness I have made the bios tweaks with 8750h and that imon 31999.

    Strange that show me max watt draw 4watt at full load.that does mean 36watt? At benchmarks go good cine 15r 1250 and 20r 3040.

    Undervolt with tweaked bios -90mv.
     
    Last edited: Apr 24, 2020
  9. Avé César

    Avé César Notebook Consultant

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    change in the bios 31999 to 21999 or 11999 (always put a negative : -21999 ) and restart, play a game or bench and see
     
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  10. greninga

    greninga Notebook Evangelist

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    Well I did. I tried 0 slope and 0 imon and show 60watt. Then again with -21999 and slope 50 I got 7watt. One more think it's strange still I can reach -150mv cache undervolt.and around 85mv core with tweaked bios
     
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