P870KM1-G - CPU Heatsink -WaterBlock?

Discussion in 'Sager and Clevo' started by cope123abc, Jun 18, 2019.

  1. cope123abc

    cope123abc Notebook Evangelist

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    Thanks guys for the advice ordered 1mm 25x25 as advised by seller.

    He said the 2080 doesn't need the copper shim but 1080 does the heatsink is the same, is there any truth to this? is the 2080 die bugger than the 1080?

    Also see attached - i am pretty sure the heat pipes are warped slightly... could this also mean the copper heat plate is warped?

    Do you think this will affect the overall performance this "bow" @Papusan @jc_denton @bennyg
    [​IMG]
     
  2. jc_denton

    jc_denton Notebook Deity

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    Yeah it has a bigger die. The 2080 die is 545mm2 vs 1080's 314mm2
    It's hard to tell if its just saggin due to it's own weight.However, I wouldn't begin trying to twist and warp it to straighten it, you might compromise the welds and overall integrity.

    Also, when it's installed in the system and resting, it might not be an issue.
     
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  3. cope123abc

    cope123abc Notebook Evangelist

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    I will be patient and see, the actual copper heatsink does appear flat to be fair, I just ran a ruler over and there was no gaps.

    Is the height of the die on the 2080 higher then do we know?
     
  4. Meaker@Sager

    Meaker@Sager Company Representative

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    The heatsink is forced into position when screwed down. The shape helps pressure.
     
  5. cope123abc

    cope123abc Notebook Evangelist

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    But the heatsink is upside down in that picture, so the pressure would be the opposite to what you would want.

    My shims arrive tomorrow, will be able to fully test then.

    I think the seller maybe genuine with the shim for the 1080 vs the 2080 scenario .

    if not - it's going back.
     
  6. Meaker@Sager

    Meaker@Sager Company Representative

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    It's not going to make much of a difference when it's in but it is the right way yes.
     
  7. cope123abc

    cope123abc Notebook Evangelist

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    Your right I think? it sits exactly like that picture in the machine, and the screw pressure would work against the heatsink?
     
  8. Meaker@Sager

    Meaker@Sager Company Representative

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    Yes, it's thin metal and a lot of screws.
     
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  9. cope123abc

    cope123abc Notebook Evangelist

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    So update guys.

    Installed the 1.2mm shims.

    It's not performing anywhere near what I expect on water or air, but a vast improvement!
    It must be down to the fact my CPU IHS is 0.6mm bigger than stock IHS and the GPU Shim is 0.2mm higher than what's recommended (by this seller).

    So there is at least a 12 degree + room for improvement.

    I have ordered a replacement Copper Stock height IHS which is 3.5 vs 4.1 I measured my Bitspower at.

    Also ordered some 1mm exact GPU Shims

    Also, I'm using really old nasty MX2 thermal paste, so ordered some thermal grizzly kryo - it could even be this old paste throwing everything right out.

    Regardless of the above quick test.

    GPU's maxing at 66 - when on there own
    CPU maxing at 69 - when on its own

    When both are on - it's worse than stock benches I did
    all fans set to full-on WC and laptop.

    Failing this it's going back or I will list on the market place as I am getting to the end of my tether with it!
     
    Last edited: Aug 9, 2019
  10. cope123abc

    cope123abc Notebook Evangelist

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    Panic over.

    It is related to the IHS being too high, it just came to me to validate EACH CORE. checked the cores while running both GPU's on max + CPU max.

    As you can see there is a BIG difference in the core temps, showing that there must be a clear twist in the HS, I will await the smaller IHS and retest.

    But 70 degrees I am quite happy with when running the whole system, it's good. especially as its on poor thermal paste too


    [​IMG]
     
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