Loud fan, unidentified process in Activity Monitor

Discussion in 'iMac' started by Brookzy, May 6, 2014.

  1. Brookzy macrumors 601

    Brookzy

    Joined:
    May 30, 2010
    Location:
    UK
    #1
    Hi guys,

    Over the last month or so, the fan(s) on my iMac (mid 2011) have become noticeably audible. I doubt this is due to the warmer weather lately as I've not noticed this in previous years.

    In the Activity Monitor, a process by the name "Isof" (or, potentially "lsof" given that the I and l are, to my eye, indistinguishable in the OS X system font), periodically appears and is consuming 98% of CPU resources - but never stays put long enough for me to force quit the process. The whole time, however, overall CPU usage is around 12% while idling.

    Any ideas what this is? The sound of the fan is really winding me up...

    Cheers
     
  2. macthefork macrumors 6502

    Joined:
    Feb 2, 2013
    #2
    I believe that's an Adobe Reader Updater process.

    Try opening Adobe Reader, then go to Help > Check for updates, and install the update...

    See if that fixes it.
     
  3. Brookzy thread starter macrumors 601

    Brookzy

    Joined:
    May 30, 2010
    Location:
    UK
    #3
    Have updated Acrobat Pro, hopefully that will fix it.

    Thanks for your help. :)
     
  4. ilyasdesign37 macrumors member

    ilyasdesign37

    Joined:
    Apr 25, 2014
    #4
    i had this mac but sold it a few months, a very good iMac
    but last summer the loud noise of fan became too much over the months

    did take to apple but they couldn't find anything

    is a common thing among iMac for some reason!

    when summer past, the fan noise didn't come no more which was odd!
     

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