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Thread: iMac too hot?

  1. #1


    Member Since
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    iMac too hot?
    I know these computers run pretty warm, but I think I could fry an egg on top of my 27" iMac!
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  2. #2

    pigoo3's Avatar
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    Quote Originally Posted by BrentRS1985 View Post
    I know these computers run pretty warm, but I think I could fry an egg on top of my 27" iMac!
    Nope...you're going to have to do better than that! Someone recently reported getting 208F on their MacBook/MacBook Pro. One thing to notice in the picture you included...your CPU fan is only running at 939rpm...that's NOTHING.

    If I had a $1.00 for every time this question is asked...

    - 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

    CrimsonRequiem's Avatar
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    Quote Originally Posted by pigoo3 View Post
    Nope...you're going to have to do better than that! Someone recently reported getting 208F on their MacBook/MacBook Pro. One thing to notice in the picture you included...your CPU fan is only running at 939rpm...that's NOTHING.

    If I had a $1.00 for every time this question is asked...

    - Nick
    That and when is the next release of the new iMac, MBP, etc.

    Your machine would shut itself off if it ever did get too hot.
    死神はリンゴしか食べない。

  4. #4

    BrianLachoreVPI's Avatar
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    March 2011 15" MBP 2.3GHz i7 Quad Core 8GB Ram | Mid 2011 27" iMac 3.4 GHz i7 16 GB RAM 2 TB HDD
    Why is your CPU fan running that slowly? I thought around 2000 rpm was the Apple preset minimum. Do you have something keeping the fan speed set low?

  5. #5

    pigoo3's Avatar
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    2011 13" MBP 2.3ghz, 8gig ram, OS 10.8.5
    Quote Originally Posted by BrianLachoreVPI View Post
    Why is your CPU fan running that slowly? I thought around 2000 rpm was the Apple preset minimum. Do you have something keeping the fan speed set low?
    Great question!

    OP: Your "secondary heatsink" says 178F (81C)...although I would say that this is normal/ok...generally at those temps the fans should be running faster (higher rpm's). Thus if the fans were at higher rpms...then the temps would be lower.

    - 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

  6. #6


    Member Since
    Dec 04, 2007
    Location
    St. Louis, MO
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    55
    Specs:
    Late 2009 27" iMac 2.8GHz i7 8GB Ram | Mid 2007 15" Macbook Pro 2.4GHz 4 GB Ram | iPhone 4s | iPad 3
    I don't have anything controlling the fan speed. I can speed it up, but 9xx is the default.

  7. #7

    baggss's Avatar
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    3.4 Ghz i7 27 in iMac (2012), 3.4 Ghz i7 MacBook Pro (2015), iPad Pro (2014), iPhone 6+
    You can download an App like SMCFanControl and kick up the fan speed on your iMac. It seems to work quite well and I can keep my CPUs down around 120 when all 4 cores are maxed out.


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