"Compaq.com - Compaq Presario 1660 Model Maintenance and Service Guide -
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
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 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
seconds to shut it down, then, remove the battery or unplug the AC power for at least 30 seconds. Reinsert the
battery or reconnect AC power and press the Power Button once to reboot.
Battery Operating Time
Battery operating time is affected by variables, such as the following:
●
Power conservation settings
●
Hardware configuration
●
Software applications
●
Installed options
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