With Notebook Hardware Control you can easily control the hardware components of your Notebook

Notebook Hardware Control helps you to:
control the hardware and system power management
prolong the battery lifetime
cool down the system and reduce power consumption
monitor the hardware to avoid system failure
make your Notebook quiet

NHC isn't only very powerful; it has a friendly program surface, it's easy to use and free for private use. A large number of users appreciate these advantages and NHC becomes one of the leading programs to control the power and hardware of modern notebooks.

IMPORTANT!!
With Notebook Hardware Control you can change the CPU Speed and Voltage, overclock the ATI and change the Notebook FAN turn ON and OFF temperature, so System-Overheating may be possible! Use at your own risk!

Up to now I never experienced real problems caused by Notebook Hardware Control. But maybe it's due to the fact that the Notebook exploded and the user disappeared in the blast, thus being unable to report :-) Anyway: Notebook Hardware Control can be extremely useful, but you should first watch its behavior before setting and forgetting about it.