smcFanControl for Mac

CNET Editors' review

If you've got burnt thighs from an old MacBook Pro or you notice that your computer is always overheating and crashing from using CPU-intensive apps (like playing PC games in a virtual Windows environment), you might want to check out smcFanControl. This free, GPL-licensed utility has a single purpose: letting you increase the minimum speed of built-in fans, so your Intel computer will run cooler.

smcFanControl lets you monitor the current temperature (in Celsius or Fahrenheit), assign different minimum speeds for each fan using sliders, and even apply different settings when your power source changes (for example, going back to default fan speed when using battery power). As with any settings-tinkering software, you'll want to use smcFanControl judiciously--but fortunately this application always keeps fans in automatic mode (so speed will increase along with CPU load) and never lets you set the fan speed below the Apple-recommended minimum. This most recent version adds support for every current MacBook, MacBook Pro, MacBook Air, and Mini.

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  • Fan Control
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All User Reviews
  • All versions:

    4.3 stars

    out of 30 votes

    • 5 star: 23
    • 4 star: 1
    • 3 star: 1
    • 2 star: 1
    • 1 star: 4
  • Current version:

    3.1 stars

    out of 7 votes

    • 5 star: 3
    • 4 star: 1
    • 3 star: 0
    • 2 star: 0
    • 1 star: 3
  • My rating:

    0 stars

    Write review

Results 1-7 of 7

  • 1.0 stars

    "Useless..."

    May 21, 2013  |   By GMacPro

    Version: smcFanControl 2.4

    Pros

    I'll get back to you...

    Cons

    If you consider the app not working at all a con, then yes.

    Summary

    First, when it is on default it won't let me make the speed any lower than 2800 rpm, which isn't that big of a problem because despite the setting it still runs at 2500ish. Then when I try to increase the speed the fans kick in for about a second get up to 3500 and then immediately go back to 2500. As far as i can tell the app holds no control over the fans as its name would suggest. Don't download. Not worth the price (and yes, I realize its free). Thanks for nothing smcFanControl!

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  • 4.0 stars

    "Useful & free: what more?"

    May 17, 2013  |   By jorjinho--2008

    Version: smcFanControl 2.4

    Pros

    Resolved the noise of the HD fan, continuously on after replacing the hard disk; easy to use, simply and great. Working on IMac late 2006, Snow OS

    Cons

    Needs to be reset after a stop.

    Summary

    If you need to mange the fans, the best simple way.

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  • 5.0 stars

    "Does what it claims to do"

    April 28, 2013  |   By khflottorp

    Version: smcFanControl 2.4

    Pros

    It is tiny, and shows the temperature and fan revolving.

    Cons

    You need to reboot - should be sufficient to restart the window manager, or just the status part.

    Summary

    Does what it claims, and with 0.0% to 0.4% CPU it will save battery life. Should be standard with all OS for laptops.

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  • 5.0 stars

    "Used it for years. Get a new Mac- Install smcFanControl"

    February 27, 2013  |   By DrClarkC

    Version: smcFanControl 2.4

    Pros

    Free, light, easy to install and remove.
    Won't let you run your mac slower than Apple specs.
    Shows you the temp of your laptop. Get it even if you don't adjust fan speed at all.

    Cons

    I've never seen any downsides to it.

    Summary

    This is one add-on that is a real no-brainer.

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  • 5.0 stars

    "OS X: Flash Player Plug-in Container melting your CPU?"

    January 18, 2013  |   By toadc69

    Version: smcFanControl 2.4

    Pros

    Lightweight and simple.
    Convenient way to monitor your CPU temp in all versions of OS X (well Snow and Mountain)
    Easiest way to manually bump up your fan speeds either as a default or simply when you're at the Church of CPU Hoggin'!
    I'm sure this app is extending the life of my 2009 MBP 13.
    I set my default fan speed to 2500RPM and added more presets
    Default PLUS 3500 RPM
    Higher 4100 RPM
    Highest 5000 RPM
    Grande Super 6000 RPM

    At 5000 RPM i can hear the fan and only use this when I start breaking 150F
    And Grande Super is usually reserved for time when I 'm getting effed in the A by AF (Adobe Flash Player! will melt any CpU from here to Baghdad!)

    Cons

    none for the past two versions of OS X

    Summary

    This is the app for cooling your laptop and even your friends/family who are partial to watching movies online and don't hesitate to use their down duvet covered bed as their desk, thereby obstructing partial/all of their internal fan's exhaust ports. Do them a favor and install SMC Fan Control in their startup folder & boost default RPM. It uses 0.3% CPU and 12mb of real memory all day long.

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  • 1.0 stars

    "Doesnt work."

    January 15, 2013  |   By Cosmospacemonkey

    Version: smcFanControl 2.4

    Pros

    None. It does not work. I downloaded twice and the same issue. Lion OS

    Cons

    No zip, just app. Same as the other comments. Will not open in Lion.

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  • 1.0 stars

    "Why won't it work?"

    November 24, 2012  |   By MilaRad

    Version: smcFanControl 2.4

    Pros

    It sounded good.

    Cons

    Double clicking and it doesn't "do" anything. Open, function, start etc. OS 10.7 - weird. There was no "installer" - just the app.

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Results 1-7 of 7

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