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    Interest of CPU/GPU repast ?

    Discussion in 'Razer' started by sarou, Jul 1, 2018.

  1. sarou

    sarou Notebook Consultant

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    Hi,


    I would like to have your opinion about interest of Grizzly Kryonnaut repast on Razer 15 2018.
    I apply a -160mv cpu igp UV and my temp decrease of 10c!!

    No Repast No UV (ambiant temp 28c (France))
    [​IMG]

    No Repast UV -160mv (ambiant temp 28c (France))
    [​IMG]

    It's a good score I mean.

    If i repast CPU/GPU by Kryonnaut Grizzly how many can I gain?
    Is it interesting to change pads by Gelid one 14W/mk?

    Thanks in advance.

    Best regards
     
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  2. Vasudev

    Vasudev Notebook Nobel Laureate

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    You might see further drop in temps by 5-10C max. With repads you can decrease temps by another 5C (max). Overall you'll be happy.
    So what's the temps when you're gaming for sustained periods of time? Example: Witcher 3, PUBG,GTA 5 etc..
     
  3. hmak604

    hmak604 Newbie

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    not to hijack but pads will decrease temps by up to 5C?
     
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  4. Vasudev

    Vasudev Notebook Nobel Laureate

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    Yeah it will. I simply quoted a low number of 5C. I managed to decrease 10C(See system specs as a spoiler in my signature). So, for some people you'll see 10-15C reduction if stock pads didn't touch the heat sensitive parts correctly. For some people they see no difference or 1-2C drop. Experiences will vary acc. to ambient temps and other environmental variables.
     
    Last edited: Jul 3, 2018
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  5. sarou

    sarou Notebook Consultant

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    I do a repast with Kryonnaut.
    My first try i made a very a thin uniform layer on cpu and GPU : 6c increase!!! :mad: :eek:
    At the second try i made a thick layer on cpu & gpu : 2c gain
    I just replace de thermal pad on the PCh by Gelid 14W/mk one...

    I wonder if the pads are not too thick because they are really very crushed and decrease the pressure on CPU/GPU...

    [​IMG]

    What is your opinion on this?
     
  6. sarou

    sarou Notebook Consultant

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    I played 30min session of Serious Sam 3 in ultra mode and I selected processor option to ULTRA (I don't know what is this option) : Result : 97/98/97/99/100/98 :eek: :eek: :eek:
    Without processor ultra : 92/91/91/93/92/91
     
  7. sarou

    sarou Notebook Consultant

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    I will try in few day repast cpu/gpu with graphit pads.

    But I would like to repad but I am not sure about the thickness of all the pads...
     
  8. Vasudev

    Vasudev Notebook Nobel Laureate

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    You can see pads having deeper grooves or imprint on some pads and while some don't have a imprint at all. From the looks of it, try lower W/mK gelid pads and stack them over existing pads with improper contact. Try with 0.5mm first, I think it should work.
    If you have higher ambient temps, you can use lower W/mK gelid or even arctic pads.
    I feel the paste was excessively used. Kryonaut was a white paste IIRC, I see gray paste just like IC Diamond or maker gel.
    Remove the rubber applicator and put a small pea in the middle, afterwards use the rubber applicator to spread evenly in one direction to get smooth finish. If the paste isn't enough use the same amount once again. On GPU use a big pea and spread it the same way like cpu. Hopefully, your core temps should decrease by 10C.
    @Papusan Is it safe to lap the vapor chamber on heatsink?
     
  9. Vasudev

    Vasudev Notebook Nobel Laureate

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    Graphite pads are not good.
     
  10. sarou

    sarou Notebook Consultant

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    why?
    I would try only on CPU/GPU not in replacment of pads.
     
  11. Vasudev

    Vasudev Notebook Nobel Laureate

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  12. Papusan

    Papusan Jokebook's Sucks! Dont waste your $$$ on Filthy

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    You can do it but not much. Correct pads thickness is more important.
     
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  13. Datus

    Datus Notebook Consultant

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    There is a good tube video on methods of pasting and pads etc.
    Which I found very interesting.

    With that info and the very useful picture you posted I would do this.
    Repast the CPU and GPU with Grizzly Kryonaut thermal 12.5W/M
    I would replace all the pads working out correct thickness with maybe Thermal Grizzly Minus Pad 8 - spread it thin over all the CPU/GPU (not pea etc) as the 6 core needs as much heat spread as possible.
    and maybe put a ultra thin smear of the paste on to the pads as well.

    Then I think it would make sure there can be enough pressure on the thing that needs it the most the CPU/GPU.

    Tell me what you thinks and don't forget to like if u like the idea/help.
     
  14. sarou

    sarou Notebook Consultant

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    Do you have a picture of all pads on heatsink with the good thick of every pads?
    I says many pads are 1,5mm but I think many of them could be replace by 1mm?

    What do you think about that ?
     
  15. rinneh

    rinneh Notebook Prophet

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    I strongly recommend Gelid pads, those are the most easy pads to work with and offer good performance (better than Kryonaut).

    Pads have to be tested which is trial and error. So get some cheap paste, put it on the cpu and GPU, first try it with 1.5mm pads and theck the imprint on the pads if all components and check how well the paste is spread on the CPU and GPU die. If the imprints ont he pads is good but the spread on the CPU & GPU is bad, that would mean you need to have thinner pads. IF you use too thin pads, the spread on CPU & GPU is perfect but no imprints of components on the thermal pads.

    Why I recommend Gelid, these can be compressed easier and deeper than Kryonaut pads.So they are more tolerant when your pads are slightly too thick.
     
  16. sarou

    sarou Notebook Consultant

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    I have Alohacool pads is it good ?
     
  17. Papusan

    Papusan Jokebook's Sucks! Dont waste your $$$ on Filthy

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    I fix it for you... Alphacool thermal pads. Same as fujiPoly. Only branded with another name.
     
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  18. sarou

    sarou Notebook Consultant

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    Perfect! More difficult to apply but better result
     
  19. Papusan

    Papusan Jokebook's Sucks! Dont waste your $$$ on Filthy

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    If you go for the Alphacool pads... Select the 14 W/mK pads.
     
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  20. Goracij

    Goracij Notebook Enthusiast

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    Can anyone tell for sure what are those sticky/spongy pads that are installed from the factory (1.5-2mm?)? I tested various pads but those were either not as soft or not that sticky. Also, it seems that white pads are actually 2mm Alphacool-like pads. But I couldn't find anything like that.
     
  21. Vasudev

    Vasudev Notebook Nobel Laureate

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    They are 3M pads.
     
  22. Goracij

    Goracij Notebook Enthusiast

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    Is it 3M industrial 5516-series (5519?)?
     
  23. Vasudev

    Vasudev Notebook Nobel Laureate

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    Looks like the same Dell uses.