Power Management
Compaq Presario 1900 Series Portable Computers are
equipped with Advanced Power Management (APM). This management system allows you to
conserve battery power and customize the power saving settings to suit your individual
needs.
Depending on your patterns of computer use, you can set
different conditions, or Power Schemes, under which the computer will go into Sleep mode. The optional settings are Home/Office Desk , Portable/Laptop , and Always
On .
From the default settings, you can change the following settings.
- When the computer goes into Sleep (Standby) mode
- When the screen times out and goes blank
- When the hard drive slows down
NOTE: |
The setting for the hard drive must be less than
or equal to the setting for the computer. |
IMPORTANT: |
If you are connected to a network, Compaq
recommends you set System Standby to Never . |
Sleep mode is a low power
mode, also referred to as Standby mode.
|
CAUTION: While in Sleep mode, your computer will
maintain system information and open files. Unsaved information will be lost if you turn
off your system prior to system wake-up, or if you lose power while using the AC adapter . |
Hibernation mode occurs by pressing the Power
button once. Your computer saves the content of your computer memory to the hard
drive. This is followed by the computer turning off.
The following table shows the conditions and
indicators for getting in and out of the various power modes: Sleep, Hibernation, and Off.
Mode |
To Start |
To End |
Indicators |
Sleep
|
Manual -
Fn+F4
key combination |
Press
any key or move the mouse |
Flashing
Power LED |
Time-Out
Default -
15 minutes. If using 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 using the Start button, or press and hold down the Power
button for 4 seconds |
Press Power button
once |
No Power LED,
blank screen |
Occasionally you may encounter a non-working keyboard
or a locked screen. To restart your computer, press and hold down the Power
button for at least four seconds. This will cause a manual shutdown. Press the Power
button once to start the computer.
If the computer still does not restart, follow
these steps:
1. Press the Power button and hold it for
four seconds to shut the computer down.
2. Remove the battery and unplug the AC power for at
least 30 seconds.
3. Reinsert the battery or reconnect AC power and press
the Power button once to restart.
If you need to install or replace components in
your computer, you must turn the computer off completely . Follow the instructions
above for putting the computer into Standard Off mode. Unplug the computer electrical cord
from the outlet and remove the battery if installed. |