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    Concerning scuff marks on CPU die and heatsink??

    Discussion in 'Hardware Components and Aftermarket Upgrades' started by laptopnoob678, Sep 13, 2020.

  1. laptopnoob678

    laptopnoob678 Notebook Consultant

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    So just took my heatsink off to re-paste while replacing the RAM, and I noticed these marks on the die and heatsink. After re-pasting the CPU/GPU with Kryonaut and putting it back together, it seems to work fine (other than iGPU issues, but I think that might be drivers as it happened before). It's a little cooler and scores 3441 in Cinebench R20 which seems higher than other benchmarks I can find for the 4600H

    I'm still a little concerned though, is it anything to worry about? It looks almost like some of the die has rubbed off onto the heatsink, or vice versa!
     

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    laptopnoob678, Sep 13, 2020
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  2. Dr. AMK

    Dr. AMK Living with Hope

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    Nothing to worry about. repast with Kryonaut, and you are good to go.
     
    Dr. AMK, Sep 13, 2020
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  3. Khenglish

    Khenglish Notebook Deity

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    I don't see anything to be concerned about.

    This reminds me when idiots used to blame IC Diamond for killing their processors because it leaves a stain, when in reality they were busting corners off the die due to not knowing how to remove heatsinks.
     
    Khenglish, Sep 13, 2020
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  4. laptopnoob678

    laptopnoob678 Notebook Consultant

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    Is that what I did do you think? Because I already re-pasted with Kryonaut when I got it. This is my second time re-pasting (I was getting slightly worse performance after the first re-paste)

    Yesterday I was much more generous with the paste, and it seems to have helped.
     
    laptopnoob678, Sep 13, 2020
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  5. yrekabakery

    yrekabakery Notebook Virtuoso

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    Kryonaut is a poor choice of paste for laptops as it's prone to pumping out due to the low viscosity and 80C limit.
     
    yrekabakery, Sep 13, 2020
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  6. laptopnoob678

    laptopnoob678 Notebook Consultant

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    Well in my G3 I went with MX-4 originally, but saw massive improvements once I re-pasted again with Kryonaut
     
    laptopnoob678, Sep 13, 2020
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  7. yrekabakery

    yrekabakery Notebook Virtuoso

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    MX-4 is even worse than Kryonaut for laptops. The main issue is that Kryonaut’s performance doesn’t last, as you’re seeing now repasting again so soon.
     
    yrekabakery, Sep 13, 2020
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  8. laptopnoob678

    laptopnoob678 Notebook Consultant

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    I mean I didn't have to re-paste I just thought since I had the back cover off, I would take a look at how the spread was, and it looked a little thin. I don't think it was pump out as there was practically no paste outside of the die contact area

    Regardless, what paste would you recommend?
     
    laptopnoob678, Sep 13, 2020
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  9. yrekabakery

    yrekabakery Notebook Virtuoso

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    IC Diamond, Phobya Nanogrease Extreme, Kingpin KPX, or Thermalright TFX.
     
    yrekabakery, Sep 13, 2020
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  10. jotm

    jotm Notebook Evangelist

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    Whaaat, I've been using MX4 exclusively for years... temps do get worse after a year or so but stay pretty decent still. What would you recommend?
     
    jotm, Sep 18, 2020
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  11. yrekabakery

    yrekabakery Notebook Virtuoso

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    See the post above yours.
     
    yrekabakery, Sep 18, 2020
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