Mac users interested in Smc fan control for os x 10.5.8 generally download:
Manage the fan speed and activity when working on a Mac. Check the current temperature readings and increase or decrease the rotations speed of the built-in hardware fans, monitor the changes in conditions such as loading and cool runnings. Save configuration profiles.
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.
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.