P370-P377 GPU2 heatsink

Discussion in 'Sager and Clevo' started by kantana, Jan 20, 2019.

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  1. kantana

    kantana Notebook Consultant

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    Remember reading here there were 2 models of heatsink for GPU2 on these models:

    Exactly! After researching alot, I found out that there's two heatsink models for the 2nd GPU for Clevos P370 to P377, I got unlucky, I have the bad one, here's a picture that shows the difference betwen the good one and the bad one (the one that I have is the one on the left):

    [​IMG]
    (credits for the guy who took the picture, I got this picture in a forum couldn't find the author post anymore to give him propper credits, sry...;/)

    Anyone have more details pics on the good/bad models? I notice recently my GPU2 is 9 degrees hotter than GPU1 after repasting. Looking to replace mine.
     
  2. t6nn_k

    t6nn_k Notebook Consultant

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    Can't see the picture.
     
  3. bennyg

    bennyg Notebook Virtuoso

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    9C hotter on the slave is exactly what I found with my P370EM

    IIRC the difference was that the GPU heatsinks for the SM models were bonded together - EM are two piece
     
  4. t6nn_k

    t6nn_k Notebook Consultant

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    Yup. EM's slave GPU shares CPU heatsink.
     
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  5. kantana

    kantana Notebook Consultant

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  6. t6nn_k

    t6nn_k Notebook Consultant

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    It was 2-piece EM heatsink on the video so if you already have CPU and GPU2 heatsinks separated then you have the better heatsink.
    Things you could do to improve your temps even more:
    * use a stand
    * seal the gaps between fan and heatsink. Foil tape works well.
    * make the intake holes a bit larger. Small drill bit works well.

    GPU1 fan can be replaced with P870 fan to get a way better airflow. Just make sure it is 5v fan.
     
  7. Meaker@Sager

    Meaker@Sager Company Representative

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    Proper sealing and the use of liquid metal can also help.
     
  8. kantana

    kantana Notebook Consultant

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    Thanks guys, was in a hurry so no time to play with LM, instead I repasted the GPU2 heatsink with Kryonaut. This dropped me about 3 degrees from the original IC Diamond 7. So now GPU2 runs 5 degrees higher than the GPU1. I suspect the longer heatpipes on the 2nd GPU heatsink makes it more inefficient.
    Will try using foil tape to close off all gaps in the exhaust port to increase air pressure.
    Anyone have a GPU2 cooler or same temp as GPU1 under load?
     
  9. t6nn_k

    t6nn_k Notebook Consultant

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    I had it a bit cooler with 680M SLI, but when I upgraded to 980M SLI then the GPU2 started to run hotter. The gap increases when the temperature reaches higher degres. Right now in the winter time it stays cooler and the gap is small. Unigine Heaven with autofans max was 76 and 79 degrees. +100MHz core and +100MHz memory overclock.
    With max fans 72 gpu1 and 68 gpu2.
     
    Last edited: Jan 22, 2019
  10. Meaker@Sager

    Meaker@Sager Company Representative

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    It can depend on the differences between the silicon quality on the chips. Is there a difference if you swap the cards?
     
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