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Simple and very effective cooling "mod" for p775dm2/p775dm3

Discussion in 'Sager and Clevo' started by tanzmeister, Apr 13, 2017.

  1. BeastsForever.TheDragon

    BeastsForever.TheDragon Notebook Evangelist

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    Dont you think a copper shim would eventually o better the this? I mean it copper, an could conduct heat better!

    But also have to add another layer of thermal pads to vrms tho!
     
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  2. Papusan

    Papusan BGABOOKS = That sucks!! STAHP! Dont buy FILTH...

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    With use of copper shim you will need a extra layer with thermal paste:cool:
     
  3. Mr. Fox

    Mr. Fox Undefiled BGA-Hating Elitist

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    Yes, unless you solder the shim to the heat sink, an extra layer of thermal paste is needed. It might be better than stock if the fit is horrible, but if the stock fit is good it might not work as well as stock.
     
  4. BeastsForever.TheDragon

    BeastsForever.TheDragon Notebook Evangelist

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    Okay, one thing i didn't understand, why would i need an extra layer of thermal grease? The shim is supposed to decrease the distance between the chip and heatsink, how would it need more thermal comp then stock heatsink!?
     
  5. Mr. Fox

    Mr. Fox Undefiled BGA-Hating Elitist

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    If you do not put thermal paste on both sides of the shim (or solder the shim to the heat sink, which would be ideal,) and assembled it dry then you would not get adequate heat transfer from the CPU to shim, or the shim to the heat sink. You would need thermal paste on both sides of the shim for exactly the same reason you need thermal paste without the shim.
     
  6. Papusan

    Papusan BGABOOKS = That sucks!! STAHP! Dont buy FILTH...

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    Die-paste-shim-paste-Heatsink.

    Edit. @Mr. Fox damn fast:D
     
  7. Meaker@Sager

    Meaker@Sager Company Representative

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    Indeed so a shim is only used when the gap would make a thick layer of paste which is worse at conducting than metal by more than having extra thermal interfaces.
     
  8. BeastsForever.TheDragon

    BeastsForever.TheDragon Notebook Evangelist

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    Thats why after reading @Mr. Fox 's advice, i straight away ordered a capable solderer to get my shim permanently on the HS
     
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  9. Papusan

    Papusan BGABOOKS = That sucks!! STAHP! Dont buy FILTH...

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    Or just buy the thicker SL Bitspower IHS if you have Kaby/Skylake.
     
  10. BeastsForever.TheDragon

    BeastsForever.TheDragon Notebook Evangelist

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    I dont live in usa, so, i dont think that would be a good idea, and since also i have a coffee lake, so, i dont think that would work.
     
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