Asus P5B Deluxe/WiFi-AP - Manual (Page 130)

-0 Chapter 5: Software support
5.3.6 ASUS Ai Nap
This feature allows you to minimize the power consumption of your computer
whenever you are away. Enable this feature for minimum power consumption and
a more quiet system operation.
After installing Ai Suite from the bundled support CD, you can launch the utility by
double-clicking the Ai Suite icon on the Windows OS taskbar and click the Ai Nap
button on the Ai Suite main window.
Click Yes on the confirmation screen.
To exit Ai Nap mode, press the system power or mouse button then click Yes on
the confirmation screen.