Newbie Questions on Core Shutdown / Temps

Discussion in 'MacBook Air' started by rivertrout10, Jul 5, 2008.

  1. rivertrout10 macrumors newbie

    Joined:
    Jul 1, 2008
    #1
    Have read a few different threads pertaining to core shutdown and high temps - how do you all figure that kind of stuff out? I just bought mine on 30 June and really like it - but it does seem quite warm after a while of continuous use. I have no idea if I have a core shutdown problem - but if I do, I'd like to know. My apologies if this seems simple - but would appreciate your assistance none-the-less.

    r/
    DL
     
  2. TXCraig macrumors 6502a

    TXCraig

    Joined:
    Jul 2, 2007
    Location:
    Houston, TX
    #2
    All laptops get warm. I have had my MPA for months and never had a problem with it. My MBP that I purchased in 2006 gets much hotter and people complained it about it when it came out also.

    I think people just like to complain....
     
  3. ntrigue macrumors 68040

    ntrigue

    Joined:
    Jul 30, 2007
  4. ScottFitz macrumors 6502a

    Joined:
    Nov 3, 2007
    #4
    the main issue I see is likely from placement of the laptop on an object, like my lap, that causes the vents to get blocked. Due to the design, there wasn't anywhere else they could vent it. For the most part, I'm careful about not blocking it. But right now, it's been blocked for about 2 hours and I'm at 50 degrees and around 5200 fan speed.

    It really hasn't been an issue for me.
     
  5. rivertrout10 thread starter macrumors newbie

    Joined:
    Jul 1, 2008
    #5
    How do you figure out your fan speed? Is there a built in way to tell temp and fan speed? Still would like to know how folks figure out when a core shuts down...

    r/
    DL
     
  6. ScottFitz macrumors 6502a

    Joined:
    Nov 3, 2007
    #6
    Google istat pro. Free download. It's a widget.

    And, now I'm down to 47 degrees and 2500 fan speed. Go figger.
     
  7. ScottFitz macrumors 6502a

    Joined:
    Nov 3, 2007
    #7
    went out last night and ran a bunch of youtube videos. I stressed the machine out for a good half hour, watching istat. It did heat up pretty high, fan cranking at 6200, vents not blocked. I saw the cores max out a couple of times, but no shutdowns.

    The youtube videos that didn't have much action to them ran the machine cooler than those that were sports clips, lots of action. This "issue" seems to be video card (or lack thereof) related.
     
  8. accrane macrumors member

    Joined:
    Jul 6, 2008
    Location:
    Orlando
    #8
    can you please tell me how to tell if the cores maxing out and what exactly happens when it does?

    Right now I am browsing safari and rocking out on itunes. CPU A is at 53 degrees and fan cranking at 6200.
     
  9. rivertrout10 thread starter macrumors newbie

    Joined:
    Jul 1, 2008
    #9
    ScottFitz - thanks for the info - downloaded istat - cool little tool.

    r/
    DL
     
  10. ScottFitz macrumors 6502a

    Joined:
    Nov 3, 2007
    #10
    change the setting in istat to "cpu usage". you'll see them as two bars. Nothing really happened that was apparent. videos didn't slow down or stutter or anything.
     
  11. TheBearman macrumors 6502

    Joined:
    May 23, 2008
    Location:
    Cary, NC
    #11
    Really? When I had core shutdown problems youtube videos would start stuttering. Not having core shutdowns since I replaced the thermal paste, really helped.
     
  12. Sound Evolution macrumors 6502

    Joined:
    Oct 30, 2007
    Location:
    Netherlands
    #12
    Dear,

    I am an technician and electronic designer (but not a computer engineer) myself. Is there any guideline or page who show how to apply the thermal paste the right way? And which type of thermal paste is recommended.

    With kind regards,
    Bas
     
  13. gcmexico macrumors 6502a

    gcmexico

    Joined:
    Dec 22, 2007
    Location:
    New York City
    #13
    *
    there is a thread for that, some where in this forum...saw it like 1 or 2 months ago..step by step regarding thermal paste
     
  14. Apple Ink macrumors 68000

    Apple Ink

    Joined:
    Mar 7, 2008
    #14
    My MacBook seems to stick at 84 - 86 C when Im ripping two or three things together!
    It never seems to cross that!
     
  15. Sound Evolution macrumors 6502

    Joined:
    Oct 30, 2007
    Location:
    Netherlands
    #15
    But more important do you experience core shut down under that temp?

    With kind regards,
    Bas
     
  16. accrane macrumors member

    Joined:
    Jul 6, 2008
    Location:
    Orlando
    #16
    please, I am still wondering how you tell that your experiencing core shutdown. What exactly happens?
     
  17. Apple Ink macrumors 68000

    Apple Ink

    Joined:
    Mar 7, 2008
    #17
    Nope. My DVDs continue to rip at the same speed!

    P.S.: I read an article once, by Apple, which said not to believe 3rd party temp monitoring programs as they tend to be inaccurate and report much higher temperatures. And of late, I feel iStat pro (which reported the temp) to fall under this category!
    It displays the temp shooting up even if the CPU's at 100% for just 1 sec!
     
  18. Sound Evolution macrumors 6502

    Joined:
    Oct 30, 2007
    Location:
    Netherlands
    #18
    When it happened, the computer start to slow down. Movies start to stutter, If you type it takes more hen 1 or 2 seconds for each letter to appear on the screen. The dock on OS-X stutter and freeze. Access to applications and folders become slow.

    Most often I have it with Skype or Yahoo messenger. On the second place with watching your tube video's over longer time.

    Not hard to miss... and very irritating.

    I have to admit in colder ambiances it gets better and core shutdown is less of an issue. (but not impossible to get)

    With kind regards,
    Bas
     
  19. ayeying macrumors 601

    ayeying

    Joined:
    Dec 5, 2007
    Location:
    Yay Area, CA
    #19
    MacBook do not suffer from this problem.
     
  20. nyzballa12 macrumors member

    Joined:
    Nov 5, 2006
    #20
    Its mostly caused by heat, such as when it is used on carpet. The heat isn't allowed to be pushed out of the laptop
     
  21. jottingjones macrumors newbie

    Joined:
    Jul 8, 2008
    Location:
    Australia
    #21
    Go to Applications >Utilities,and drag the activity monitor into your dock. Right click on it, select dock icon> Show CPU usage. Now there should be two bars in the dock, each representing a core. On a core shutdown, there will only be one active.
     
  22. VS007 macrumors member

    Joined:
    Apr 12, 2008
    #22
    Thanks Scott!!

    Thanks to OP to start this thread, always wanted to ask this question.
     

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