Presenting the All-New Intel 10th Gen MSI "GS66"!

Discussion in 'MSI' started by -=$tR|k3r=-, Apr 2, 2020.

  1. nyichiban

    nyichiban Notebook Consultant

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    So first off thanks to @seanwee for the help and @werdmonkey4321 for the inspiration to try it. Shunt mod didn't work well for me so ended up replacing the resistors themselves and now timespy scores are 2nd in the world. Glad to say it was a success! Scores here: https://www.3dmark.com/spy/14437272
     
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  2. snixel

    snixel Newbie

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    @nyichiban which shunt resistors did you use to replace them? Do you have any idea of the wattage it uses now?
     
  3. werdmonkey4321

    werdmonkey4321 Notebook Consultant

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    The rough formula is

    P_new = P_original(1+R_original/R_new), where

    P_new = desired new power limit

    P_original = original power limit

    R_original = resistance of the original shunt resistors

    R_new = resistance of the resistor your soldering on

    You can derive it using ohm's law and the power law. This formula estimates raw power draw. Some of it is lost as heat at the VRMs, so the amount the GPU will actually use is slightly less. Also P_original should actually be the wattage of the GPU plus any lost as heat, but you can just use your GPU's stated power limit as a surrogate. So for example on the GS66 you can just set P_original = 80W for all models.

    https://www.reddit.com/r/MSILaptops/comments/ie9l8y/shunt_modding_gs66/
     
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  4. snixel

    snixel Newbie

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    Thanks alot for the great guide. Really helpful!
     
  5. nyichiban

    nyichiban Notebook Consultant

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    I used r003 smd resistors to replace the onboard r005 resistors.
     
  6. klGE66

    klGE66 Notebook Guru

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    Nice!!I'm right behind you with around 9840 and 10200+ graphics and I only gotta i7 10750h. You can definitely get that score higher https://www.3dmark.com/spy/14412227
    Have you overclocked your ram or tightened the timings?
     
    Last edited: Oct 9, 2020
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  7. nyichiban

    nyichiban Notebook Consultant

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    What did you do to yours? Did you shunt mod it? I'm not too worried about the CPU score side as I want to get the GPU score higher. Tightening the memory wouldn't affect the GPU score and I can't really tighten it since it's not even running at the rated speed since it's not a memory supported by MSI supposedly.
     
  8. klGE66

    klGE66 Notebook Guru

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    No shunt just configuring a lot of stuff in bios.It was a lot of trial/error...Turning off all the aspm,clock gating and spread spectrum clocking for the PEG,PCIE and DMI definitely made noticeable performance improvements.Then just undervolting/overclockimg in afterburner...It took a lot of time googling different bios settings to get it running this good.
     
  9. klGE66

    klGE66 Notebook Guru

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    I've noticed timespy really likes memory overclocks to.Id probably crash in most games if I ran my memory 1300+ like I do for timespy.
     
  10. nyichiban

    nyichiban Notebook Consultant

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    Yea I ran mine at +165 for the core and +1375 for the memory in MSI afterburner. Did not undervolt the card but I might if it can give me stable overclocks.
     
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