Compaq 1234 Maintenance & Service Manual page 41

"Compaq.com - Compaq Presario 1200 Series Maintenance and Service Guide - Models: 1234, 1235, 1236, 1237, 1238, 1240, 1242, 1250, and 1252
can be the result of a low battery condition. As it enters Hibernation your computer will display a progress screen, as
it automatically saves the machine state before it shuts down and turns itself off. Your computer will automatically go
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 will display 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
Sleep
Hibernate
Off
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 putting the computer into Off mode, unplug from the outlet, and remove the battery
(see battery section for instruction on removing battery).
Rebooting After a Lockup
Occasionally you may encounter a frozen keyboard or a locked screen. To reboot your computer (as if from a cold
start) press and hold down the Power Button for at least four seconds, which will cause a manual shutdown. Then,
restart it with a single press of the Power Button. If it still doesn't recover, press the Power Button and hold it for four
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To Initiate To End
Manual keys Press any key
combination
- Fn+F4
Time Out Default
15 minutes. If on
Battery power
(system will not
go to Sleep if on
AC power)
Manual - Press Press Power
Power Button once Button once
Time Out Default
If low battery or
after 1 hour of
sleep (system will
not Hibernate if
on AC power)
Perform normal Press Power
Windows Button once
shutdown via the
start button, or
press and hold
down the power
button for 4
seconds
Indicators
Flashing green
Power LED
No Power LED,
blank screen
No Power LED,
blank screen