How cold has your Mac been?

Discussion in 'Community Discussion' started by mrsir2009, May 18, 2011.

  1. mrsir2009 macrumors 604

    mrsir2009

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    #1
    Mine has been 16C at the coldest. How bout' you guys?
     
  2. -aggie- macrumors P6

    -aggie-

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  3. dmr727 macrumors G3

    dmr727

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    #3
    ^^^ yeah, that sounds low for an internal temp. But too high for an external one. :confused:

    If the OP meant externally, about 5ºC while running. And (accidentally) while in sleep it spent roughly three hours at -62ºC.

    Internally my 2008 MBP sits around 90-120ºC given average use, with 55º being pretty normal for when it initially wakes up.
     
  4. stridemat Moderator

    stridemat

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    #4
    Fahrenheit or Degrees Centigrade? This thread may get confusing otherwise...;)
     
  5. -aggie- macrumors P6

    -aggie-

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    #5
    I would think he’s referring to CPU temp.
     
  6. dmr727 macrumors G3

    dmr727

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    #6
    I would think so too, but like you said, there's no way a running CPU would only be at 16ºC.
     
  7. mrsir2009 thread starter macrumors 604

    mrsir2009

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    #7
    SMC Fan Control was saying 16C on a freezing cold winter morning when I first started it up. Then the computer warmed a bit and sat at a healthy 50C.

    iStat Pro is saying the same as SMC Fan Control for the CPU, so I guess the CPU was 16C. But remember, the machine had only been running for several seconds when it was 16C.

    BTW we're doing Celsius :D
     
  8. Purestang macrumors member

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    Dec 22, 2010
    #8
    CPU is running at 40*C after about 3 hours of browsing the internet, sending emails and watching videos.

    better than my dell m1330 that stayed at 72*C while just having the desktop up, no programs running.
    :apple:
     
  9. rerelease macrumors regular

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    #9
    I was annoyed by my computer fanning up like hell so I put it on my balcony. It was February and the temperature outside was around -20C (-4F). smcFanControl gave me 18C for the CPU readout.
     
  10. mrsir2009 thread starter macrumors 604

    mrsir2009

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  11. Love macrumors 68000

    Love

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    #11
    I will have to do you one better, sir. 15˚C. 'Twas a very cold afternoon (-26C), I had the window wide open to air things out a bit. Additionally, at the time, SMCFanControl was being an absolute dick and refusing to let the fans run back down to their idle speed, instead they were at max. So, my Mac Pro brilliantly had a 15˚C CPU temperature.

    Beat that. :p My CPUs typically sit around 30-35˚C.
     
  12. cherry su macrumors 65816

    cherry su

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    Feb 28, 2008
    #12
    0ºC, after I booted it immediately taking my burning MBP out from the freezer. Needless to say, it thrusted up to 40ºC pretty quickly.
     
  13. mrsir2009 thread starter macrumors 604

    mrsir2009

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    #13
    Jesus! Its not good for your computer to put it in the freezer, is it?
     
  14. AdrianK macrumors 68020

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    Feb 19, 2011
    #14
    Moses! It's not good to keep your computer near your toilet cistern either ;D

    26 C on most boots, which makes sense (room temperature D:).
     
  15. mrsir2009 thread starter macrumors 604

    mrsir2009

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    #15
    If it is properly sealed with a good external cooling system to counter the sealing then its alright to keep it in your cistern.
     
  16. lostngone macrumors demi-god

    lostngone

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    #16
    -35c

    I would say somewhere around -35 Celsius.
     
  17. alust2013 macrumors 601

    alust2013

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    #17
    Well, I don't imagine that's all that terrible, but booting it immediately afterwards will heat it up quickly, which is bad when it's that cold (which it has no reason to be anyhow.)
     
  18. lostngone macrumors demi-god

    lostngone

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    #18
    It is the hardest on hard drives and batteries. I have lost a few HD based iPods that way.
     
  19. mrsir2009 thread starter macrumors 604

    mrsir2009

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    #19
    I understand how it'd hurt batteries, but how does it hurt hard drives?
     
  20. StephenCampbell macrumors 65816

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    Sep 21, 2009
    #20
    SMC reads between 35C and 45C for my 2006 Mac Pro. It changes depending on the temperature that day, as well as how hard the machine is working. It's usually around 25 or 26 C when I first wake it out of sleep or boot it up.
     
  21. lostngone macrumors demi-god

    lostngone

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    #21
    Hard drives have very tight tolerances different types of metal contract(and expand) at different rates and that can cause an increase in fiction during spin up/warm up. Any type of lubrication in the sealed bearing of the motor or read/write head arm will be more viscous causing higher resistants and load.

    It isn't that big of a deal at/around 0ºC but the lower the temp the more problems you will see. Of course when you get to those temps you are way out of the recommend operating temperatures.

    That is one reason I like SSD based ipods, then your problem is the lcd display not working.
     
  22. ViciousShadow21 macrumors 68020

    ViciousShadow21

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    #22
    the coldest mine has ever been is 24c. It operates at about 35-55c. i keep it elevated however.
     
  23. maflynn Moderator

    maflynn

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    #23
    My desktop runs between 35 - 43c and my MBP runs between 45c - 60c depending on the task its executing.
     

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