laptop cooling mod - help needed self.laptops

Discussion in 'Notebook Cosmetic Modifications and Custom Builds' started by mayantronixx, Mar 28, 2017.

  1. mayantronixx

    mayantronixx Newbie

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    hello everyone ,

    so im working on my final year school project about planned obsolescence, my idea for the practical part of my project , is to mod the cooling system of an old hp dv7-4182, , the dv7 series is known to overheat , and i need some advices.

    so this laptop idles at 70 & about 90 in load after repaste ( used ekwb ectotherm performance similar to noctua paste) , i've fixed tons of laptop, the issues is not bad repaste , so the idea is to make it more durable , and easily cleanable, i had some different ideas:

    -add little heatsinks on vrms or other chips like wifi one

    -replace battery by double capacity battery ( double the size & elevate the laptop also)

    -replace wifi card by AC wifi compatible ( and to make it compatible with windows 10 , cause the drivers installed from windows 10 with the original card doesnt work properly )

    -demciflex magnetic filter on all the intakes to clean it easily

    -rubber feet to elevate it

    -take out dvd drive & extend the cooling heatpipe assembly ( flat copper heatpipe from ebay )+ cut copper fins (taken out from used laptop heatpipe heatsink assembly) with a pwm fan & control via knob through cheap chinese pwm controller & power it from s-ata dvd drive port

    -add copper shims under gpu & cpu to see if any better temps ( ( what do u guys recommend to insulate the surroundings of the cpu & gpu chips ? liquid electrical tape like starbrite/plastidip or just regular tape ? i heard about people using nail polish :p )

    -change paste to thermalgrizzly conductonaut

    -add heatsink that is exposed from outside of the case ( http://s1228.photobucket.com/user/CacheFlow123/media/10ModifyCoverandInstallLegs.jpg.html?sort=3&o=4) but i will use that heatsink http://www.befr.ebay.be/itm/252084707190?_trksid=p2060353.m2749.l2649&ssPageName=STRK:MEBIDX:IT

    other inspirations :

    http://www.cartoonaday.com/modbook-mod-install-do-it-yourself-heatsink/

    http://therandomlab.blogspot.be/2012/01/laptop-cooling-mod.html

    i will test each & every idea to see if any actual improvement with occt

    i was thinking about using artic silver thermal adhesive , but i see on various sites and forum that i can do my own , mixing part of epoxy glue & hardener with thermal paste , would it work with conductonaut also since this paste is all metal ? it would be then better than AS thermal adhesive

    did anyone ever tried mixing epoxy with mettalic thermal pastes to make thermal glue ? i heard people dabbed epoxy in corners & used paste in the center too instead of mixing them to glue the parts , what would u guyz recommend

    my goal is to achieve -30% / - 40% temperature in load let me know what you think about my ideas , and give me suggestions :D

    regards
     
  2. mayantronixx

    mayantronixx Newbie

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    whats the best way to insulate the surroundings of where i apply conductonaut ?
    liquid electrical tape ? standard high temp electrical tape ? or simply just smear standard thermal paste where i need to insulate ?
     
  3. bennyg

    bennyg Notebook Deity

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    I used kapton tape
     
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  4. mayantronixx

    mayantronixx Newbie

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    thanks for your input , it could be another possibility , but why its better than using thermal paste that i already have , liquid electric tape or just super 33 + electrical tape
     
  5. bennyg

    bennyg Notebook Deity

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    The tape was what I had on hand and hasn't warped, unstuck, bucked or anything.

    Conductonaut is great if the contact is good.
     
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  6. mayantronixx

    mayantronixx Newbie

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  7. bennyg

    bennyg Notebook Deity

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    Some other thoughts.

    Coating heat generating chips and other components may interfere with heat dissipation if they are uncooled, e.g. PCH

    To "projectify" it a bit perhaps you could measure the gap between CPU/GPU and heatsink and investigate ways to make it level (have the die and heatsink surfaces parallel) and how to modify the mounting pressure if it is uneven.

    I have some shims coming to test on my P170EM, it has a terrible visibly concave heatsink, I will see if a thin shim can help. Since I applied Conductonaut it has a constant 10-15C difference between cores 0 and 1 that it didn't have with paste. The temp drop on the other 3 cores is in excess of 25C...

    Also you can mention how the i7-3720QM in that 4 CPU generation, near 5 year old P170EM with a custom bios raising power limits and turbo bins and a few bucks of liquid metal can still outperform the equivalent priced chip ($378) of the previous 6700HQ generation and probably match it with the current 7700HQ!
     
  8. mayantronixx

    mayantronixx Newbie

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    yeah that's why i was thinking of just smearing some high viscosity thermal paste around DIE

    i have some copper shims 20*20*0.8mm incoming from china too , hope i get good results with them , if that's what causing the issue , it will make my job easier
     
  9. ChanceJackson

    ChanceJackson Notebook Evangelist

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    I bolded the wisest option imo but don't do what that mac user did do what Alienhack did instead
    http://forum.notebookreview.com/thr...spec-video-cards.768347/page-11#post-10421331

    I am working on an even more customized approach to this problem
     
  10. Mobius 1

    Mobius 1 what is quality control?

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  11. mayantronixx

    mayantronixx Newbie

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    thank u for ur input , do u know how many degrees lower than stock this kind of mod can achieve ?
    i want achieve 30-40pc less deg if possible , dunno if only that option can lower that much ( but its the most effective of all so , im gonna focus on that one more than the others)
     
  12. ChanceJackson

    ChanceJackson Notebook Evangelist

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    In the link I provided alienhack was able to lower cpu and gpu temp by close to 30c by adding an additional laptop heatsink and fan combo in the dvd drive bay
     
  13. Starlight5

    Starlight5 I'm a cat. What else is there to say, really?

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    @mayantronixx if CPU idles at 70, there is definitely something wrong with your current setup, no way around it. If contact between CPU and heatsink is good, most likely heatsink pipe went bad - or was right from the start, consider replacing it instead of wasting your time on fiddling with the dinosaur.
     
  14. mayantronixx

    mayantronixx Newbie

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    thanks , didnt read that part

    dv6&dv7 are known to overheat even just after being bought from the store, so doesnt think thats the issue ( but buying new one is 13 € might consider but i already ordered all the items i needed for my mod )
    http://h30434.www3.hp.com/t5/Notebo...DV7-Temperature-Reach-70-Degrees/td-p/1477681

    (notice how the guy says heavy use = installing apps lel , picture occt temps ;) )
    the hp guy just answers , there is not danger lel :D yes if i dont mind frying my cpu from being to close to T junction all the time after 3 years
    ( it has survived only cause my father use it with a fan plate for years )
     
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