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Thread: Proper test of thermal pastes

  1. #1
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    Proper test of thermal pastes

    After many speculations about which impact thermal pastes have when overclocking at really low temperatures I decided to test it out.

    To get some good results I produced a simple dummy heat load consisting of five power resistors developing around 36W each (180W total). This should be close to what a cpu produces under these conditions.



    The setup consists of this dummy load with a F1EE standing on top of it (figured the weight was enough). One thermal probe is attached to the base of the pot and the other to one of the power resistors.



    The thermal pastes tested were Arctic Cooling Ceramique, OCZ Freeze and Antec Formula 7. The results were the following:



    Temperature delta:



    As you can see Ceramique is terrible all the way, the Antec is doing very good however failing when temperatures are reaching around -50*C. The OCZ is clearly the winner but something particular happens at around -165*C. The dummy load temperature suddenly starts increasing. The temperature delta increases from around 50*C to 70*C and stays there until I went back to around -50*C pot temp.

    I'll try to get my hands on some more thermal pastes to find an alternative to the Freeze which is EOL.
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  2. #2
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    this is good mate thanks



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  3. #3
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    Great job Jon !! Some say the ceramique works better if you heat up first, let it cool down and then start benching...
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  4. #4
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    Thanks for posting this up Jon!

    Some more ideas in here:

    http://www.ocxtreme.org/forumenus/showthread.php?t=6122

    Last time I buy Arctic Ceramique then.....

    There must be something that uses the same recipe as OCZ Freeze?
    Quote Originally Posted by T_M View Post
    Not sure i totally follow anything you said, but regardless of that you helped me come up with a very good idea....
    Quote Originally Posted by soundood View Post
    you sigged that?

    why?
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  5. #5
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    nice work elmor....

    some tim/pastes just freeze and becomes an insulator at really cold temps....

    also applying something really thin helps alot...

    how did you apply the thermalpaste?


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    nice findings, maby next time try without thermal paste so we can se how much it helps or maby even makes the tempreture worse

  7. #7
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    so what we have to do ? benching without thermal paste?

    dow corning how it perfoms ?
    Last edited by KanGaXx; 12-02-2010 at 02:41 PM.

  8. #8
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    Get some Shin Etsu!
    Signatures make my posts look huge... but I'm not humble enough to completely remove my signature, so I kept this note explaining it.

  9. #9
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    Nice work Elmor...
    That s a pity we can t find OCZ freeze...
    I did try PerformancePC, Sidewindercomputers, Frozen CPU and Petra's Shop...then...is very hard to find...
    Do you know where are the thermal for sell???

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    I might try gelid GC extreme...heard it was pretty damn good

  11. #11
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    rbauss i got heaps of ocz freeze if you want some mate, Cant wait to see more tests with some shin/mx- series

    Another thing I find funny is AMD/Intel would snipe any of our Moms on a grocery run if it meant good quarterly results, and you are forever whining about what feser did?

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    One of the reasons I have used ocz for a while... actually its not.. I stumbled on it by chance...

    It would be cool to try different methods of applying the paste also to see if it makes a difference... should make for a great read...

    Keep it up...

  13. #13
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    http://www.amazon.com/Ocztfrztc-Extr.../dp/B00128TA78 is the only legit place I can find it at.
    Signatures make my posts look huge... but I'm not humble enough to completely remove my signature, so I kept this note explaining it.

  14. #14
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    Very interesting results

    I'd love to see ICD7 tested if you're planning to continue doing this testing. I switched from ceramique to ICD7 on a CB free chip and gained ~200MHz could have been a fluke who knows. IIRC, the thermal conductivity of diamond is higher than copper at cryogenic temperatures so should be pretty solid.


  15. #15
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    so arctic ceramique sucks in subzero?
    well its good to hear after buying a 22gr tube .. .. .... .

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    ICD7 or antec formula 7 ?? anyone tryed ?

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    nice test elmor , iam using the ocz freeze on my 275 gtx , but sombody says TITAN NANO BLUE is better
    again nice test m8

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    I have tryed 8~10 thermal paste (coolmaster,noctua,revoltec,.....)
    best than these they is titan nano grease and revoltec nano grease
    http://www.revoltec.net/revoltec.net...websiteLang=en
    http://www.titan-cd.com/product/show...sp?ProID=861:D

  19. #19
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    Nice work elmor
    Tnx for sharing



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  20. #20
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    Well done, just a pity that you dont have more different thermal pastes (MX-3, generic Zalman, AS5)

  21. #21
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    http://www.xtremesystems.org/forums/...highlight=tsan
    wprime 32m revoltec nano grease
    wprime 1024m+3dmarck06+vantage titan nano grease
    Attached Images Attached Images

  22. #22
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    how did you collect temp data, elmor ?

    It's unclear from your post.

    You can mod your flukes to have dual channel on both and to make precise data logs from them (max speed = 1 meas/sec).

    Like this :



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  23. #23
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    Quote Originally Posted by Hondacity View Post
    nice work elmor....

    some tim/pastes just freeze and becomes an insulator at really cold temps....

    also applying something really thin helps alot...

    how did you apply the thermalpaste?
    Just a blob that spreads out when I mount the pot.

    Quote Originally Posted by Dani-boy View Post
    nice findings, maby next time try without thermal paste so we can se how much it helps or maby even makes the tempreture worse
    I tested really quickly and it's way worse. Already at positive temperatures the delta was around 80*C.

    Quote Originally Posted by rbuass View Post
    Nice work Elmor...
    That s a pity we can t find OCZ freeze...
    I did try PerformancePC, Sidewindercomputers, Frozen CPU and Petra's Shop...then...is very hard to find...
    Do you know where are the thermal for sell???
    It's hard to find since it's EOL. There should be some other good ones though

    Quote Originally Posted by tsan View Post
    I have tryed 8~10 thermal paste (coolmaster,noctua,revoltec,.....)
    best than these they is titan nano grease and revoltec nano grease
    http://www.revoltec.net/revoltec.net...websiteLang=en
    http://www.titan-cd.com/product/show...sp?ProID=861:D
    Cool, will have to try and get some of those.

    Quote Originally Posted by TiN_EOF View Post
    how did you collect temp data, elmor ?

    It's unclear from your post.

    You can mod your flukes to have dual channel on both and to make precise data logs from them (max speed = 1 meas/sec).

    Like this :

    I did the guide on KPC forums
    Manually :P Havn't had time to start modding the flukes yet (have ordered parts though).
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  24. #24
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    nice elmor, Dino and I have been banging on about this for a few months now, it is a very interesting subject,

    I have been collecting data on 10 thermal pastes over the last month,

    Ceramique delta I have found to be very good over repeated tests but it fails miserably at -120, but if you have a -100 chip the delta can be nothing..

    I have tested Antec Formula7, Ceramique, Arctic Silver, Noctua, Thermalright, Coolaboratory, OCZ Freeze, some others I can't remember LOL

    If you check the specifications of all these products, the lowest any of them claim to be rated is -50.. But we are all using lower than this right?

    oh guys OCZ freeze is EOL now..

  25. #25
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    Quote Originally Posted by elmor View Post
    Just a blob that spreads out when I mount the pot.
    ceramique is multiphase..you have to heat the pot up so that it will change into another phase...when you tightten the pot it does spread out..but better compared to ceramique that is cold


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