TPFanControl!

SpeedFan is a program that monitors voltages, fan speeds and temperatures in computers with hardware monitor chips. SpeedFan can even access S.M.A.R.T. info and show hard disk temperatures. SpeedFan supports SCSI disks too.

fancontrol is a shell script for use with lm_sensors. It reads its configuration from a file, then calculates fan speeds from temperatures and sets the corresponding PWM outputs to the computed values.

CoolBook is a tool for the MacBook, MacBook Air and MacBook Pro computers. It lets you monitor the frequency, voltage and temperature of the CoreDuo / Core2Duo CPU.

eeectl is a small and simple yet powerful program for overclocking and hardware control of ASUS EEE PC series. You can use it at your own risk. Please do not try to run this program on other hardware; the consequences may be terrible.