Results 1 to 4 of 4
  1. #1


    Member Since
    Dec 13, 2009
    Posts
    184
    Specs:
    iMAc 1.8GHz PowerPC G5, 2GB, 10.5.8
    Fan speed seems too high on my iMac???
    It's a white 20-inch Late 2006 (other specs at bottom), and lately the fan noise is noticeable. Not huge, it is not going crazy, but used to be not heard at all.

    Fan is running around 870 rpm with a core temp at 53 degrees C. I'm just typing emails and stuff; processors are sitting at a quite low %

    I *think* the fan used to sit more like 600 rpm? Maybe I'm getting confused with another machine I had to put smcFanControl on.

    This really bugs me-it's not the end of the world, but my house can be very quiet and one of the reasons I loved these machines was silent fans.


    Processor 2.16 GHz Intel Core 2 Duo
    Memory 3 GB 667 MHz DDR2 SDRAM
    Graphics ATI Radeon X1600 256 MB
    Serial Number W8728178VUW
    Software Mac OS X Lion 10.7.5 (11G63)

  2. #2

    pigoo3's Avatar
    Member Since
    May 20, 2008
    Location
    U.S.
    Posts
    35,801
    Specs:
    2011 13" MBP 2.3ghz, 8gig ram, OS 10.8.5
    Fans do wear out (the fan bearings). Maybe the fan is simply getting worn out.

    - Nick
    - Too many "beachballs", read this: Beachballs
    - Computer seems slower than it used to? Read this for some slow computer tips: Speedup
    - Almost full hard drive? Some solutions. Out of Space
    - Apple Battery Info. Battery

  3. #3


    Member Since
    Dec 13, 2009
    Posts
    184
    Specs:
    iMAc 1.8GHz PowerPC G5, 2GB, 10.5.8
    Yes, it's definitely not a young machine!

    But the sound is not that harsh bearing kind of sound. It just seems like the fan used to run at a lower speed

  4. #4

    pigoo3's Avatar
    Member Since
    May 20, 2008
    Location
    U.S.
    Posts
    35,801
    Specs:
    2011 13" MBP 2.3ghz, 8gig ram, OS 10.8.5
    Quote Originally Posted by Head_Unit View Post

    Fan is running around 870 rpm with a core temp at 53 degrees C. I'm just typing emails and stuff; processors are sitting at a quite low %

    I *think* the fan used to sit more like 600 rpm? Maybe I'm getting confused with another machine I had to put smcFanControl on.
    I think that you may be "splitting-hairs" a little bit (difference between 600 and 870rpm's).

    What I mean is...yes...the fan(s) may seem louder...but the small difference in rpm's can easily be due to being in a warmer room than usual, doing something different (more demanding on the computer)...or both.

    - Nick
    - Too many "beachballs", read this: Beachballs
    - Computer seems slower than it used to? Read this for some slow computer tips: Speedup
    - Almost full hard drive? Some solutions. Out of Space
    - Apple Battery Info. Battery

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. High speed fan not kicking in.
    By dotdotdot in forum Apple Desktops
    Replies: 6
    Last Post: 06-01-2013, 04:00 PM
  2. high fan speed
    By mafac in forum Switcher Hangout
    Replies: 9
    Last Post: 08-03-2012, 04:36 AM
  3. iMac G5 - blank Screen and High Speed Fan
    By Mike1872 in forum Apple Desktops
    Replies: 2
    Last Post: 01-18-2010, 05:09 PM
  4. iMac G5 - blank Screen and High Speed Fan
    By Mike1872 in forum Apple Desktops
    Replies: 1
    Last Post: 01-18-2010, 02:39 PM
  5. Fan Speed Abnormally High
    By Destructive in forum Apple Notebooks
    Replies: 5
    Last Post: 04-27-2008, 02:42 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •