IBM Aptiva Handbook page 57

When the system is in "normal on" state:
W Pressing the power button for more than four seconds
turns off the system power.
W Pressing the power button for less than four seconds
brings the system into Standby mode.
W Any normal IRQ event, such as keyboard or mouse
movement or a modem ring in, wakes up the system
from Standby mode and turns it to the "normal on" state.
Take note that, while the system is in Standby mode,
Note: pressing the power button for less than four seconds
does not wake the system up.
When the system is in "normal off" state:
W Pressing the power button, regardless of the length of
time you press it (less than or more than four seconds),
simply turns the system power on.
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Follow these steps for power management:
1.
Double-click on the My computer icon.
2.
Double click on the Control Panel icon.
3.
Double-click on the Power Management icon.
The power management options are available from
this menu.
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Windows 98 provides a monitor energy saving feature. If
your monitor supports this function (see your monitor
documentation for information), perform the following steps
to set the power saving features of your monitor.
1.
Click on the Start button on your desktop.
2.
Select Settings, then click on Control Panel.
You can also double-click on the My Computer icon to
display the My Computer window. Double-click on the
Control Panel icon.
3.
From the Control Panel window, double-click on the
Display icon to show the Display Properties window.
4.
Select the tab Screen Saver.
5.
On the lower section where you see Energy saving
features of monitor, click on the Settings... box. The
Power Management Properties window opens.
6.
Specify the number of minutes before the monitor
enters standby or completely shuts off, and then click
on OK.
After the monitor has been put in standby mode, press the
Shift key to take the monitor out of standby mode.
Using the Power Management feature in Windows 98 5-3