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    NEW: Pyrolytic Graphite Sheet (PGS) the ultimate conductive material for CPU and GPU

    Discussion in 'Notebook Cosmetic Modifications and Custom Builds' started by Judith1979, Mar 13, 2015.

  1. Judith1979

    Judith1979 Notebook Enthusiast

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    Members,

    This is to let you know that I've discovered possibly the ultimate thermal conductive material for CPU's and GPU's:
    PANASONIC Pyrolytic Graphite Sheet (PGS). Its thermal conductive capability is extreme: 700 to 1950 W/(m.K); 2 to 5 times as high as copper, 3 to 8 time as high as aluminium.
    Specssheets of PANASONIC Pyrolytic Graphite Sheet (PGS) can be found here:
    http://industrial.panasonic.com/lecs/www-data/pdf/AYA0000/AYA0000CE2.pdf
    http://www.em.avnet.com/en-us/desig...tured Products/Panasonic/PGS Brochure_WEB.pdf
    http://www.mouser.de/catalog/German/102/EUR/1754.pdf (German)

    Please notice that f.i. Arctic Silver 5 has a thermal conductivity of only 11 W/(m.K), as I've once read.

    Shortly before my discovery of PGS I've had replaced the ex-factory conductive material of the CPU and GPU of my Notebook by AS5. So currently I've no intention to test the PGS material.
    Has someone else any experience with PGS as a thermal conductive material for CPU's and GPU's? Or is someone willing to test it?

    Thanks,
    Judith

    Distributors of Panasonic Pyrolytic Graphite Sheets:

    https://www.elfa.se/elfa3~eu_en/elfa/init.do?sq=Pyrolytic+Graphite+Sheet&cat=0
    http://www.distrelec.de/search?q=Pyrolytic+Graphite+Sheets (Germany)
    Other countries: https://www.distrelec.nl/elfa3~nl_nl/StartPage.do?ignorecookie=true
     
    Last edited by a moderator: Mar 16, 2015
    Judith1979, Mar 13, 2015
    #1
    bonnie.clyde and propolkin like this.
  2. bernieyee

    bernieyee Notebook Evangelist

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    EDIT: Research on this PGS and from a post on Overclock.net has revealed that this PGS is not efficient at transferring heat in high power devices, only in regards to conducting heat are they efficient (think aluminum fins on a heatsink).

    TLDR: They suck as TIM replacement
     
    Last edited: Mar 14, 2015
    bernieyee, Mar 13, 2015
    #2
  3. Mobius 1

    Mobius 1 Notebook Nobel Laureate

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    Maybe attaching more copper to a heatpipe is a good application?
     
    Mobius 1, Mar 15, 2015
    #3
  4. Megol

    Megol Notebook Evangelist

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    Transferring and conducting heat is just two words for the same thing. The reason it isn't a good TIM is that it doesn't fill imperfections.
     
    Megol, Mar 21, 2015
    #4
    Brad331 likes this.
  5. Craig9080

    Craig9080 Notebook Consultant

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    Yeah, the resulting air gap would have an atrocious heat conductivity rating and ruin the whole thing. Back to paste it is.
     
    Craig9080, Mar 22, 2015
    #5
  6. Mr.Koala

    Mr.Koala Notebook Virtuoso

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    Graphite has been used for cooling in mobile devices for quite some time.
     
    Mr.Koala, Apr 3, 2015
    #6
  7. LTBonham

    LTBonham Notebook Evangelist

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    It looks like the graphite sheets are good at spreading heat sideways, but not through the layers, so no go.

    This isn't a graphite sheet, but do you guys think it is any good?

    http://thermene.com
     
    LTBonham, Apr 5, 2015
    #7
  8. t456

    t456 1977-09-05, 12:56:00 UTC

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    The first version didn't deliver as promised, but the improved product appears quite decent. Used it on someone's laptop; flows with almost waterlike consistency, so a breeze to apply and fills any gaps/scratches in the heatsink. Don't know about long-term performance, was only a month ago. Unfortunately it was too new to have been included in Tom's Hardware roundup.

    Have a 3ml tube, pm me if you're interested in testing this. Might also trade with Liquid Pro or Ultra, have some 1ml syringes for that.
     
    t456, Apr 6, 2015
    #8
  9. propolkin

    propolkin Notebook Deity

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    Maybe in next month I`ll try one of them. Interesting stuff.
     
    propolkin, Apr 21, 2015
    #9
  10. sunster168

    sunster168 Notebook Consultant

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    bookmarking
     
    sunster168, May 14, 2015
    #10