Compaq Armada 7400 Reference Manual page 63

You can set your own timeout values for individual components
of the computer. To set component timeouts, use the following
procedure:
1. Access the Power Properties utility.
2. Select the Battery Conservation Settings tab.
3. Set the Battery Conservation level to Custom.
4. Using the drop-down boxes, select or type a timeout value for
specific components of the computer, such as system idle and
hard disk idle.
5. To save your settings, select OK when you are done. They
become effective immediately and remain in effect until you
change them.
1. Click the right mouse button anywhere on the desktop.
2. Select Properties.
3. Select the Screen Saver tab.
4. Select a screen saver.
5. Set the Custom timeout.
6. Select OK.