Mac users interested in Macs fan control osx10.5.8 generally download:
Macs Fan Control does more than its name implies. Besides providing you an option to change the BPM value of the exhaust fan, this application also gives you access to info regarding temperature sensors, details about your system, etc.
The utility sits on your Menu Bar and has a main window that shows you aforementioned system details.
SSD Fan Control is a fan management utility that comes in handy if you're dealing with a noisy hard disk fan. With its help, you can adjust the fan speed of the hard disk and optical drive according to your needs.
The interface of the utility consists of a single window where you see real-time information regarding the fan speed of your hard disk and optical drive.