so what's CPU shutdown temp again?

Discussion in 'MacBook Pro' started by cababah, Nov 21, 2009.

  1. cababah macrumors 68000

    Joined:
    Jun 11, 2009
    Location:
    SF Bay Area, CA
    #1
    screenshot taken while converting movie to ipod/iphone format*
     

    Attached Files:

  2. Eidorian macrumors Penryn

    Eidorian

    Joined:
    Mar 23, 2005
    Location:
    Indianapolis
    #2
    There's a certain margin of error from the sensors. The fan should continue to throttle up.
     
  3. cababah thread starter macrumors 68000

    Joined:
    Jun 11, 2009
    Location:
    SF Bay Area, CA
    #3
    fan is at 4200rpm now and cpu remains at 93C...that is still quite high
     
  4. Eidorian macrumors Penryn

    Eidorian

    Joined:
    Mar 23, 2005
    Location:
    Indianapolis
    #4
    85-88 C at full load here at 6200 RPM.
     
  5. Theclamshell macrumors 68030

    Joined:
    Mar 2, 2009
  6. dukebound85 macrumors P6

    dukebound85

    Joined:
    Jul 17, 2005
    Location:
    5045 feet above sea level
  7. cababah thread starter macrumors 68000

    Joined:
    Jun 11, 2009
    Location:
    SF Bay Area, CA
    #7
    thats 96-98C which according to istat (error given) i have surpassed...this is not good :eek:
     
  8. dukebound85 macrumors P6

    dukebound85

    Joined:
    Jul 17, 2005
    Location:
    5045 feet above sea level
    #8
    dont worry, todays cpus will shut down before overheating
     
  9. Techhie macrumors 65816

    Techhie

    Joined:
    Dec 7, 2008
    Location:
    The hub of stupidity
    #9
    Even before they do, the computer will lock up because it will be to hot to handle data.
     
  10. dukebound85 macrumors P6

    dukebound85

    Joined:
    Jul 17, 2005
    Location:
    5045 feet above sea level
    #10
    very true

    op: if it were too hot your computer would definitly let you know performance wise
     
  11. Theclamshell macrumors 68030

    Joined:
    Mar 2, 2009
    #11
    i agree with everyone else, i think your sensor may be wack
     
  12. cababah thread starter macrumors 68000

    Joined:
    Jun 11, 2009
    Location:
    SF Bay Area, CA
    #12
    well it is more sluggish than normal, is that what you mean? things take longer to load and open while i am converting this movie but i imagine everyone's laptops do that
     
  13. cababah thread starter macrumors 68000

    Joined:
    Jun 11, 2009
    Location:
    SF Bay Area, CA
    #13
    istat is whack or a thermal sensor in my computer is whack? the latter would be a hardware issue sounds like
     
  14. jknight8907 macrumors 6502a

    jknight8907

    Joined:
    Jun 14, 2004
    Location:
    Hudson Valley NY
    #14
    When I was living in Mexico mine would run 99-104 all day long. :eek:
     
  15. dukebound85 macrumors P6

    dukebound85

    Joined:
    Jul 17, 2005
    Location:
    5045 feet above sea level
    #15
    no, not sluggish as thats expected if you are heavily taxing cpu

    i am talking about computing errors and it freaking out. you would know it if it happened

    example
     
  16. cababah thread starter macrumors 68000

    Joined:
    Jun 11, 2009
    Location:
    SF Bay Area, CA
    #16
    this is my first laptop so i guess the "heat" thing is new to me but from the replies it sounds like its just the nature of the beast
     
  17. Techhie macrumors 65816

    Techhie

    Joined:
    Dec 7, 2008
    Location:
    The hub of stupidity
    #17
    You don't need to worry unless it looks like the computer is having an acid trip and or smoking (or doing the first as a result of the second :rolleyes:)
     
  18. J the Ninja macrumors 68000

    Joined:
    Jul 14, 2008
    #18
    processorfinder.intel.com


    That site has a list of several things, including a max temp value (It's TcaseMax, IIRC). If you are unsure of your CPU's actual name, run this command:
    Code:
    sysctl -a | grep brand_string
    and the kernel will give it to you.

    Other notes: The CPU will throttle back if it is about to overheat, and will only shut down as a last resort. Shutdown does not happen at the temp that is in Intel's Processor Spec finder, I think that number is the point it starts to throttle. The shutdown point on the mobile C2Ds is closer to 110-120C. Lastly, the fan controller on most Intel Mac's seems to have been designed with a somewhat delayed reaction, probably to prevent the fans from spiking following a temperature spike. They take a moment to react to temp changes, and heavy load might make it go flying up for a few minutes. Once the fans start ramping up, it should come back down and stabilize in the 80s somewhere. At least, my machine does. (It hovers between 80-85 for me, different Rev's of MBP are probably a bit different in this regard)
     
  19. iPhysicist macrumors 6502a

    iPhysicist

    Joined:
    Nov 9, 2009
    Location:
    Dresden
    #19
    I use the same macbook pro model as you do and my CPU temperature right now, while I am "handbreaking", is constant 68°C@ 5000rpm (20°C room temperature). If I would run handbrak without smc fancontrol CPU temps would go up to 85°C @3500rpm.

    CPU load is @ 150% with enough reserves for youtube or other stuff. I am actually running handbreak and safari only.
     
  20. DoNoHarm macrumors 65816

    DoNoHarm

    Joined:
    Oct 8, 2008
    Location:
    Maine
    #20
    the fact that your cpu is so hot while everything is so cold seems very odd. if this were my computer, i'd take it to apple.
     
  21. dukebound85 macrumors P6

    dukebound85

    Joined:
    Jul 17, 2005
    Location:
    5045 feet above sea level
    #21
    huh

    you realize that the cpu is the hottest part right

    ok, you take it to apple and say what? my cpu is too hot but everything runs perfect, can you give me a new one? lol
     

Share This Page