MacBook Pro 13 - iStat claims 0 temperature for Heatsink A

Discussion in 'MacBook Pro' started by omgitscro, Aug 14, 2009.

  1. omgitscro macrumors 6502a

    omgitscro

    Joined:
    Jul 12, 2008
    #1
    Ever since buying my MacBook Pro 13, 2.26GHz, Heatsink A has been reading a constant 0˚C in iStat menus. Is this universal, or will I need a replacement? I have only modified the amount of RAM so far, I bought 4GB of RAM from Crucial on Newegg, and I have been using Macs for close to 5 years now. Thanks!

    [​IMG]


    EDIT: I just installed the iStat Pro widget, and it doesn't even list Heatsink A as a temperature sensor. I'm going to assume that iStat menus is incorrect in listing it as an option, and that it doesn't exist on any MBP 13.
     
  2. integragsr macrumors member

    Joined:
    Aug 14, 2008
    #2
    this is what istat pro shows in my mbp 13''.
     

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  3. cababah macrumors 68000

    Joined:
    Jun 11, 2009
    Location:
    SF Bay Area, CA
  4. yoyo5280 macrumors 68000

    yoyo5280

    Joined:
    Feb 24, 2007
    Location:
    Melbourne, Australia & Bay Area
    #4
    My macbook has a pretty busted fan system, and it used to say that my Heatsink A (which is near the CPU i think) was up in the 120+!

    Then one day it dropped to 0, then disappeared..

    Maybe a faulty temperature sensor....?

    -Omi
     
  5. GeekGirl* macrumors 65816

    GeekGirl*

    Joined:
    Feb 26, 2009
    Location:
    Buffalo, NY
    #5
    Bad fan in my airbook caused the same reading.
     
  6. MacModMachine macrumors 68020

    MacModMachine

    Joined:
    Apr 3, 2009
    Location:
    Canada
    #6
    could be....


    do you live in the arctic?
     
  7. PolySciSurfer macrumors 6502

    Joined:
    Jan 9, 2009
    Location:
    California
    #7
    Technically 0 degrees Celsius still has heat. : )

    Kelvin is the only real measurement of heat. Since 0 on the kelvin scale represents "Absolute Zero" or zero vibration of molecules. :D
     
  8. lixuelai macrumors 6502a

    Joined:
    Oct 29, 2008
    #8
    I am pretty sure the MBP 13 only has 1 fan so 1 heatsink.
     
  9. omgitscro thread starter macrumors 6502a

    omgitscro

    Joined:
    Jul 12, 2008
    #9
    It would be impossible for a sensor to ever "measure" 0K because the sensor would have had to have been AT 0K to begin with, or else it would release heat into its 0K environment. ;P

    Thanks for the replies, everyone. I'm pretty sure it's just weird naming on Apple's part, and there is no such thing as a "Heatsink A."
     
  10. iWright macrumors member

    Joined:
    Aug 15, 2009
    #10
    Mine only shows B so maybe it says 0 for A as there isn't one
     

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