P170EM & 1070 MXM - install, mods, nvidia inf mod (with photo)

Discussion in 'Sager and Clevo' started by origin17em, Apr 24, 2020.

  1. origin17em

    origin17em Notebook Enthusiast

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    continuing from a 1060 6GB MXM
    http://forum.notebookreview.com/thr...nstall-mods-nvidia-inf-mod-with-photo.813384/

    this was completed November 2019.

    1060 & heatsinks
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    new 1070 side by side
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    Stock case
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    airflow mods
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    removing the 1060
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    some fancy copper after cleaning the fans
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    MOCKUP 1070 to note chassis mods
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    now cut
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    Capacitor problem
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    removing capacitor under 1070
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    Mouser:
    667-2SEPC560MW
    2SEPC560MW
    Panasonic Aluminum Organic Polymer Capacitors
    https://www.mouser.com/ProductDetail/panasonic/2sepc560mw/?qs=OE1iw1LrrPGEncoJFpEHsA==

    new cap moved
    [​IMG]
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    some test fits
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    https://www.amazon.com/Arctic-Silver-Premium-Adhesive-ASTA-7G/dp/B0087X7262

    the big heatsink modding -- doublestack heatpipes
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    double stack heatpipes
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    old heatsink
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    filling gaps with silver epoxy etc
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    CPU & GPU heatsink were polished
    i also tested raising the heatsink 1mm, eventually reverted this
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    putting the stickers back on the heatsinks
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    finale
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    this laptop was a 680M originally
    replaced with 980m -> 1060m -> 1070m
    [​IMG]

    the nvidia .inf mod was required as usual in windows7
    no inf modding required in linux, i did not even have to reinstall the driver in linux.

    linux - unigine: super position benchmark
    [​IMG]

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    also note i use an official MSI 330watt psu
    OEM Delta 330w 19.5v 4p AC Adapter for MSI
    [​IMG]


    Admittedly, the GPU temp is quite high, peaking around 91C
    i need to do more surgery and i have some new stuff here for a few changes.
    although it peaks at 91C it throttles PWR quite well, and maintains 90-91C
    peak power measured was around ~128Watts using nvidia-smi
    it frequently goes from 100-117watts

    no problems with Intel/Nvidia Optimus using PRIME
     
    IllusiveMan, mafuba and jc_denton like this.
  2. Khenglish

    Khenglish Notebook Deity

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    Did you get a benefit from doubling up the heatpipes? I'm worried you lost more through airflow loss than you gained with transfer efficiency.
     
    bennyg likes this.
  3. origin17em

    origin17em Notebook Enthusiast

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    i tested the 1070 before and after
    there was not much of a difference,
    indeed the gain from more pipes might counter the loss of airflow
    still a fun mod
    im not advocating or recommending someone do it...

    atleast especially on this laptop chassis
    OTHER styles of heatsink can benefit from similar ideas
    but not these chassis heatsinks.
     
    joluke likes this.
  4. mafuba

    mafuba Newbie

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    I have the same upgrades as you (I own a P170SM). Actually I had to remove 16GB of RAM because of random BSOD appearing in windows 10, apparently due current issues (230W adapter). Did you have to weld another kind of capacitor in orden to adapt a 330W PSU, some kind of modification? Do you think is possible to use a 330W adapter on a P170SM?
     
  5. mafuba

    mafuba Newbie

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    Also. It got my attention that you´re using linux on a model like that. Besides the graphic driver., did you have problems with other kind of drivers (backlit keyboard, camera, etc)?
     
  6. bennyg

    bennyg Notebook Virtuoso

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    I have used a 330w PSU in my P170EM from day one, no issue. Excess PSU capacity is not a problem, the laptop will only draw what it needs. Your heatsinks will be the limiter of how much power is used over an extended time, because temps.

    91C is the 1070 thermal throttle point, you will experience poor performance as it bounces off the limiter. I experienced similar on my P370EM when it was using the stock heatsink (same one as your P170EM). You should 'undervolt' (aka. turboboost curve volt cap) the 1070 as much as you can, that can bring it down below 90C with .9V or .95V.
     
  7. mafuba

    mafuba Newbie

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    Thanks for the reply.

    It is not the excess PSU that worries me but the lack of it.
    Since I made these improvements I have not stopped receiving a report of current throttling with the XTU tool (image attached).

    current_limit.PNG

    The issue of temperature has not been a problem in my case, only the one with current. My current question is if upgrading my PSU maybe could solve this problem and even ables me to upgrade to 32GB or RAM again?

    Maybe undervolt the GPU could solve the problem if I´m wanting to keep my current PSU but seeing this post I´m willing to change it if it solves this only issue.
     
  8. Meaker@Sager

    Meaker@Sager Company Representative

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    Where the heatpipes are is less efficient too, really you would want one set above the heatsink and one set below for best thermal flow.
     
  9. andrewff2

    andrewff2 Notebook Evangelist

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    Hey guys... do you think that an 4940mx can hold an 1070?? sometimes i think that what hinders the GPU now is the CPU :/

    Some light?!?!
     
  10. senso

    senso Notebook Deity

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    At high FPS's, the CPU is the bottleneck, depends on what games you are playing of course, but what made me reconsider upgrading to a 1070 is in games like Shadow of Tomb Raider there are areas that I drop to 45-50Fps's and its because my CPU is maxed out with even my paltry 980m hovering around 75-80% on those zones. The same happens on The Division 2, and on many other games.
     
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