HP Compaq Presario,Presario 650, Maintenance And Service Manual, Page: 17 / 111

Button
Component Description
Power button
{
When the computer is off, press the button to turn on
the computer.
{
When the computer is on, press the button briefly to
initiate Sleep.
{
When the computer is in the Sleep state, press
the button briefly to exit Sleep.
{
When the computer is in Hibernation, press
the button briefly to exit Hibernation.
CAUTION: Pressing and holding down the power
button will result in the loss of unsaved information.
If the computer has stopped responding and Microsoft
Windows shutdown procedures are ineffective, press and
hold the power button down for at least 5 seconds to turn
off the computer.
To learn more about your power settings, select Start >
Control Panel > System and Security > Power
Options
.
8 Chapter 2 External component identification