smcFanControl controls the fans of every Intel Mac to make it run cooler.
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 minimum speed to a value below Apple's defaults.
Updated on Oct 17 2016
Note: Now requires OS X 10.7 or later