Waterfall Pro is a very powerful utility which protects your PC and cools down your processor. It was designed for PC users who want a cooler and safer Windows environment, as well as for laptop users who need to save power so that the battery will have a longer life. Waterfall Pro decreases your CPU temperature up to 30C. It also optimizes your CPU for a faster performance.
Limitations: Authors website is gone, consider this unsupported.