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iMac 27-inch Late 2012 fan speed?

14975 Views 43 Replies Latest reply: Oct 7, 2013 8:16 PM by mckenz1e RSS
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simon0000 Level 1 Level 1 (0 points)
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Dec 18, 2012 4:15 PM

Hello,

 

does anybody know the default fan speed for imac 27 inch, late 2012. I think the fan is quite noisy

 

Regards

Simon

iMac (27-inch, Late 2012), OS X Mountain Lion (10.8.2)
  • WZZZ Level 6 Level 6 (11,880 points)
    Currently Being Moderated
    Dec 18, 2012 4:43 PM (in response to simon0000)

    What fan speeds are you seeing? What are you using to monitor them? You might try getting iStat Pro, although I don't think it will show system processes for Mountain Lion. Might show the fan speeds, though. No longer supported by the developer.

     

    http://istat-pro.en.softonic.com/mac

  • babowa Level 7 Level 7 (22,090 points)
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    Dec 18, 2012 5:14 PM (in response to simon0000)

    I'm curious and a bit confused: you are referring to a late 2012 27" - that would be one of the brand new super thin iMacs and the 27" size isn't shipping until January (as far as I know) - so how did you get your hands on one?

  • vestalmac Level 1 Level 1 (0 points)
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    Dec 18, 2012 5:24 PM (in response to babowa)

    I ordered the new (super thin) 27" iMac on the first day it was available (11/30/12). Mine delivered today and after 2 hours of setting up the fan is running fast at all times. iStatPro is showing ~2700 rpm. I'm trying to find information on standard fan speeds but not much on the internet at this time. The noise is pretty loud... will be calling Apple support if this keeps up.

  • babowa Level 7 Level 7 (22,090 points)
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    Dec 18, 2012 5:32 PM (in response to simon0000)

    Did not realize they are shipping already; not too many people here will have any experience with these because they are brand new, but, when you consider how thin it is, it does not surprise me. Actually I am surprised there is room for a fan; no idea where it is located at this point though.

  • WZZZ Level 6 Level 6 (11,880 points)
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    Dec 18, 2012 9:02 PM (in response to simon0000)

    1,200 doesn't sound that fast to me. It  only shows one fan?

  • crh24 Level 3 Level 3 (920 points)
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    Dec 19, 2012 1:15 AM (in response to simon0000)

    simon0000 wrote:

     

    Hello,

     

    does anybody know the default fan speed for imac 27 inch, late 2012. I think the fan is quite noisy

     

    Regards

    Simon

    iStat Pro says my speed is 1200.

     

    I've had this unit for two days now, installing lots of software, and I have yet to hear the fan over the disk drives in my office and said drives are pretty quiet as is my office. 

     

    Of course, installing software generally doesn't push the CPU.  Perhaps the fan will be much louder when the CPU is pushed and temperatures begin to rise.  I know that's the case with my mid-2010 iMac.

     

    The case of the iMac has never been other than cool while my mid-2010 runs warm (not hot) just sitting there with the CPU in an idle state.

    late-2012 27" i7 iMac, 32GB DRAM, OS X Mountain Lion, iPad '4'; ATV3; mid 2012 MBA;
  • vestalmac Level 1 Level 1 (0 points)
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    Dec 19, 2012 3:16 AM (in response to crh24)

    I converted all my data from a 2009 Mac mini Time Machine back up. When I reboot or wake the new 27" iMac from sleep the fan immediately goes to 2700 rpm. Not sure if the TM conversion has anything do with it. I have a case # into Apple support and will be calling them today.

  • crh24 Level 3 Level 3 (920 points)
    Currently Being Moderated
    Dec 19, 2012 11:37 AM (in response to vestalmac)

    vestalmac wrote:

     

    I converted all my data from a 2009 Mac mini Time Machine back up. When I reboot or wake the new 27" iMac from sleep the fan immediately goes to 2700 rpm. Not sure if the TM conversion has anything do with it. I have a case # into Apple support and will be calling them today.

    After 25 years in the IBMPC/Windows World I became accustomed to two things.  One, scrape the hard drive clean and re-install the OS every 6 months to a year; and, two, on purchase of a new PC always start from scratch.  In the couple of dozen years I was in that world I never experienced 99.9% of the problems reported.

     

    When I moved to the Mac world in early 2009 I automatically incorporated #2 in my routine (I've never had to do the first) and I have never experienced 99.9% of the problems I've seen in these forums.

     

    I know that Apple is supposed to be 'better' at updates/data migration than Windows, but I sometimes wonder...

     

    Good luck with your support case.

  • WZZZ Level 6 Level 6 (11,880 points)
    Currently Being Moderated
    Dec 19, 2012 11:53 AM (in response to crh24)

    I've done sucessive migrations, including using Setup Assistant (on the first boot of the new Mac) and never seen 99.99% of the problems I see on these forums.

     

    But can't vouch for Setup Assistant in ML or with the new iMacs. I've done it with Snow, problem free.

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