Sandia’s floating, spinning heatsink promises 30x better CPU cooling

Discussion in 'Apple, Inc and Tech Industry' started by Axemantitan, Jun 25, 2012.

  1. DingleButt, Jun 25, 2012
    Last edited: Jun 25, 2012

    DingleButt macrumors regular

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    Dec 14, 2011
    #2
    Im wondering how the air bearing heat transfer between the chip/bottom layer and the spinning fins (Convection I take it) is so efficient compared to conduction through thermal paste (Why do we make a big deal about good thermal paste if that isn't a bottleneck point?

    Also this thing probably cant be used in a mobile product because you have a huge spinning metal disk with a high rotational inertia that wont want to tilt (Like a gyroscope).

    I'll be waiting to hear more in the future.
     
  2. maflynn Moderator

    maflynn

    Staff Member

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    Boston
    #3
    that's very interesting. I wonder if this will usher in a new wave of cpu coolers.

    I do wonder about the mtbf of a motor that causes a impeller to spin 2k
     
  3. Mousse macrumors 68000

    Mousse

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    Flea Bottom, King's Landing
    #4
    Eh? From what I read they only replace the fins and fan part of the heatsink. The bottom plate and thermal paste would still be required...I think. Having something spinning above a naked processor would be pretty risky in my book.
     
  4. DingleButt, Jun 28, 2012
    Last edited: Jun 28, 2012

    DingleButt macrumors regular

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    #5
    Regardless of how, it seems like having to use convection to transfer heat to the spinning heatsink seems like it wont be very efficient.
     
  5. Tinmania macrumors 68040

    Tinmania

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    Aug 8, 2011
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    Aridzona
    #6
    You did not read what I read. In fact there would be no thermal paste as the heat-sink is not physically connected to the processor.

    As noted in the article this might not work in vertical installations. I also fear that, just as we are moving away from spinning disks for our main bootup drives, we know have to worry about the CPU fan "crashing?"



    Michael
     

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