Control the fans of every Intel Mac to make it run cooler with smcFanControl
smcFanControl lets the user set the minimum speed of the build in fans. So you can increase your minimum fan speed to make your Intel Mac run cooler. However in order not to damage your machines smcFanControl doesn’t let you set a minimum speed to a value below Apple’s defaults
SmcFanControl 2.3 adds the following features and bug fixes
Support for OS X Lion
Now displays the temperature on new iMacs
added Dutch localization
fixes a crash that occurred on startup on some macs
Intel, Mac OS X 10.4 or later.