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  1. #1


    Member Since
    Aug 19, 2008
    Posts
    1
    iMac FAN noise !
    I have 24" iMac. When I bought it (4 months ago), fan was very silent, but yesterday when I switched my iMac on, it started very loud. I downloaded istat menu utility to check fan speeds, it shows:

    CPU FAN: 3295
    HARD DRIVE: 5498
    OPTICAL DRIVE: 4401

    cpu temperature always shows 25 C

    I am only running safari, how can I decrease fan speed ? please help

  2. #2


    Member Since
    Aug 20, 2008
    Posts
    8
    Specs:
    2.8 GHz Intel Core Duo Extreme, 2GB 667 MHz DDR2 SDRAM
    I wouldn't know. Im new to MAC as well. I will give you my stats
    CPU FAN: 1199rpm
    Hard Drive: 1373rpm
    Optical Drive: 698rpm
    Attached Images Attached Images

  3. #3

    skaheadpunk's Avatar
    Member Since
    Jan 12, 2008
    Location
    Leicester, England
    Posts
    1,760
    Specs:
    MacBook, iPod Classic, 8GB 3G iPhone, Time Capsule
    Rather than focusing on reducing the speeds, if it doesn't slow down to me that says there's a problem because it's not adjusting the speed itself. You're still under warranty, so I'd get in touch with Apple.

    Have you tried the usual restart?

  4. #4

    Alexis's Avatar
    Member Since
    Apr 20, 2006
    Posts
    2,255
    Specs:
    Al iMac 20" 2.4Ghz Intel Core 2 Duo
    How long have you left it? The vacuum cleaner cooldown phase should only last for 3 or 4 minutes.

  5. #5


    Member Since
    Oct 23, 2009
    Posts
    5
    where do you check the temperature???


    Quote Originally Posted by Edddy View Post
    I have 24" iMac. When I bought it (4 months ago), fan was very silent, but yesterday when I switched my iMac on, it started very loud. I downloaded istat menu utility to check fan speeds, it shows:

    CPU FAN: 3295
    HARD DRIVE: 5498
    OPTICAL DRIVE: 4401

    cpu temperature always shows 25 C

    I am only running safari, how can I decrease fan speed ? please help

  6. #6
    todd51
    Guest
    Quote Originally Posted by frankie olives View Post
    where do you check the temperature???
    The easiest way to check your fan speeds and temperature is by using the iStat Pro widget.

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