HDD Fan Speed

Discussion in 'iMac' started by ArcspacE, May 5, 2010.

  1. ArcspacE macrumors member

    Joined:
    Jul 31, 2009
    #1
    Hello, fellow Users.
    Need your advice on a little aspect.

    iStat reads as follows.

    ODD 800 rpm
    CPU 1200 rpm
    HDD 1600 rpm

    Normal HDD temp varies around 50C during normal usage, and around 40C during little usage.

    Using the WD Black Caviar 1TB.

    Is that normal? Should I reduce the fan speed?
    Haven't used SMCFan Control yet.


    Thanks for any help.
     
  2. Hellhammer Moderator

    Hellhammer

    Staff Member

    Joined:
    Dec 10, 2008
    Location:
    Finland
    #2
    If it stays below 55c, there is no need to speed up the fans. 1600rpm is the default HD fan speed so that's normal
     
  3. ArcspacE thread starter macrumors member

    Joined:
    Jul 31, 2009
    #3
    Thanks, mate.

    My concern came from the direction of most HDD fans running in the region of 900-1200 rpm. To I thought mine was running a little high.

    I suppose those were smaller/older models.

    How 'fast' is your 640GB?
     
  4. Hellhammer Moderator

    Hellhammer

    Staff Member

    Joined:
    Dec 10, 2008
    Location:
    Finland
    #4
    The default set by OS X for at least 24" iMacs is 1600rpm.

    What you mean by "fast"? I have no issues with its "slowness", it's as fast as I hoped. Sure launching things like Photoshop takes pretty long time but overall it's pretty fast
     
  5. ArcspacE thread starter macrumors member

    Joined:
    Jul 31, 2009
    #5
    Apologies.
    By 'fast' I meant - your HDD fan speed.

    Recently installed XP in Bootcamp for some gaming and now have this conviction my fans are running louder than before.
    Although iStat says otherwise I can almost swear my HDD ('s fan) sounds louder.
     
  6. Hellhammer Moderator

    Hellhammer

    Staff Member

    Joined:
    Dec 10, 2008
    Location:
    Finland
    #6
    I have mine set to 2200rpm with SmcFanControl. Even though they are hearable, they don't really bother me. Try reseting PRAM and SMC (Google) and see if they sound better afterwards
     
  7. ArcspacE thread starter macrumors member

    Joined:
    Jul 31, 2009
    #7
    Will try.
    They spin at the same rpm though. Just sound a little louder. Or at least I think so.

    Wonder if XP/Bootcamp had something to do with it.
     

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