iMac Fan Control 1.2
A free and unsupported piece of software that helps you easily control the fan speeds on your Intel based iMac and decrease / increase the temperature of your disk
Fan Control is a preference pane, which means it can be accessed only through the System Preferences. Fan Control features a simple and intuitive user interface which displays the fan controls, desired / current fan speeds, current temperatures and a graph showing fans vs. current temperature.
You will be able to control the lower temp threshold, the upper temp threshold, the slowest CPU fan speed, HD fan speed and DVD fan speed. Furthermore, the values for the desired / current fan speeds and the current temperatures are modified based on the adjustments you've made to the fan controls.
NOTE: Fan Control is unsupported and only works on mostly older Intel-based iMacs with Mac OS X 10.4 and 10.5.