"Compaq.com - Compaq Presario Series Maintenance and Service Guide - Models: 1246, 1277, 1278, and 1279
CAUTION: While in Sleep mode, your computer maintains system information and
open files. Unsaved information is lost if you turn off your system prior to system
wake-up, or if you lose power while using the AC adapter.
Hibernation Mode
Hibernation helps conserve battery life and protects your data. Hibernation can be a routine power-saving event,
or can be the result of a low-battery condition. As it enters Hibernation your computer displays a progress screen,
as it automatically saves the machine state before it shuts down and turns itself off. Your computer automatically
goes into Hibernation when the battery has little power left, or when the system (operating on battery power) has
been in Sleep mode for more than an hour. You can also manually initiate Hibernation by pressing the power
button once while the system is active. To restore the computer's previous state, simply press the power button
once again. While waking up, the computer displays a progress screen.
The following table shows the conditions and indicators for getting in and out of the various power management
modes - Sleep, Hibernation, and Off.
Mode To Initiate To End Indicators
Sleep
Manual keys combination- Fn+F4 Press any key Flashing green Power LED
Time Out Default 15 minutes. If on
Battery power (system will not go to
Sleep if on AC power)
Hibernate
Manual - Press Power button once Press Power
button once
No Power LED, blank screen
Time Out Default If low battery or
after 1 hour of sleep (system will not
Hibernate if on AC power)
Off
Perform normal Windows shutdown via
the start button, or press and hold
down the power button for 4 seconds
Press Power
button once
No Power LED, blank screen
Servicing Your Computer - Full Off Mode
If you need to install or replace components in your system, you must turn the computer off completely. Follow
the instructions above for properly placing the computer into Off mode. Then, unplug the computer from the
AC outlet and remove the battery (see battery section for
instruction for removing the battery pack).
Rebooting After a Lockup
Occasionally you may encounter a frozen keyboard or a locked screen. To reboot your computer (as if from
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20chec...0SERIES%201246%201277%201278%201279/power.html (3 of 4)6/27/2004 2:33:44 AM
To Next Page
Loading...
