The author is Hendrik Holtmann. His website is at eidac. The GitHub repository for the code is at hholdmann/smcFanControl .
A compiled copy of version 2.4 can be found at the author's site or on this site:
You can unzip the file with
In the directory where you unzipped the file you will see the following files
$ ls -l | cut -f1,8- -d" " total -rw-r--r-- 10906 Aug 21 2012 F.A.Q.rtf -rw-r--r-- 17987 Oct 1 2006 LICENSE drwxrwxr-x 136 Aug 21 2012 __MACOSX drwxr-xr-x 102 Aug 21 2012 smcFanControl.app
You can copy or move the
smcFanControl.app directory under
Applications directory, if you wish to have the utility in
the directory where other applications are commonly stored.
When you run the GUI
for the software by double-clicking on
smcFanControl, which is
what you will see in the OS X Finder when you navigate to the
smcFanControl.app directory, to start the utility, you
will be prompted for a password for an account with administrator
access to the system. When you provide the password, you may see
the following alert:
If you click on the Continue button, you will then be prompted to answer whether you wish to check for updates on startup.
If a new version of the software is available, you will be given an opportunity to install the update.
When the application runs you won't have a window open, but if you look at the top of the screen you should see a temperature displayed with a fan speed below it, e.g. 63°C and 2005rpm as shown below where the information is displayed above a Safari browser window.
If you click on it, you will see a Preferences option.
The smcFanControl preferences window will allow you to adjust the minimum speed for fans.
From the Menubar drop-down list you can change the displayed information from "Temperature & Fans" to any of the following:
Temperature & Fanspeed (multiline)
Temperature & Fanspeed (singleline)
However, if you just want a utility that you can run from a command line
interface (CLI), aka a shell prompt, such as you can get with the
Terminal app found in
Applications/Utilities, you can
smc program which you can find beneath the
Contents/Resources directory where the
smcFanControl.app directory was placed. To see fan speeds,
$ /Applications/smcFanControl.app/Contents/Resources/smc Apple System Management Control (SMC) tool 0.01 Usage: /Applications/smcFanControl.app/Contents/Resources/smc [options] -f : fan info decoded -h : help -k
: key to manipulate -l : list all keys and values -r : read the value of a key -w : write the specified value to a key -v : version $ /Applications/smcFanControl.app/Contents/Resources/smc -f Total fans in system: 2 Fan #0: Fan ID : Left side Actual speed : 1997 Minimum speed: 2000 Maximum speed: 6200 Safe speed : 0 Target speed : 2000 Mode : auto Fan #1: Fan ID : Right side Actual speed : 2001 Minimum speed: 2000 Maximum speed: 6200 Safe speed : 0 Target speed : 2000 Mode : auto $
The source code for version 2.4 can be found in the following file:
Created: Saturday November 21, 2015