Compaq Presario 1600-XL145 Notebook
(250-0334/8200) Power Management Faxback Doc. # 59310
The following power management features are available for conserving AC
power and extending battery operating time:
Power Management Settings
Sleep
Hibernation
Battery operating time
Rebooting After a Lockup
Servicing Your Computer - Full Off Mode
POWER MANAGEMENT SETTINGS
Depending on your patterns of computer use, you can set different levels of
power management. These different power management levels can be activated
based on the amount of time passed since the last system activity. System
activity examples include keyboard or mouse movement, CD or DVD playback
(while under program control that monitors Sleep), and modem use.
You can select different conditions or power schemes through Power
Management.The optional settings are Home/Office Desk, Portable/ Laptop,
and Always On. From the default settings, you can change the following
settings:
the System goes to Sleep (Standby) mode,
the screen times out and goes blank,
the hard drive spins down,
Each of these system components will go to sleep after the selected or
default periods of inactivity. (The setting for hard drive must be less
than or equal to the setting for System.)
IMPORTANT:
If you're on a network, it's recommended that you set System Standby to
NEVER.
There are five categories of power management settings under the Control
Panel. The default setting for each feature is listed below in the tables.
Power Management Properties
Tab:Power Schemes: Plugged in Running on Batteries
Always on System Standby: Never 15 minutes
Turn OFF Monitor: After 3 hours Never
Always on System Standby: After 15 minutes After 10 minutes
Power Management Properties
Tab: Alarms:
Low Battery Alarm: 10%
Critical Battery Alarm: 0%
Alarm Actions: X Display Message Notification
Text Action No Action
Power Management Properties
Tab: Power Meter: Default
Tab: Advanced Default
Display Properties
Tab: Monitor: Laptop Display
(Maximum resolution according to unit display size)
SLEEP
You can select Sleep mode instead of turning off the computer when you have
finished using it. This allows the computer to wake up faster than turning
it completely off and saves power over the active (On) mode. Compaq
Presario Series Notebook computers have two levels of sleep, Hibernation
and Sleep.
HIBERNATION
By pushing the power button once your computer will perform a save to disk
followed by a shut down of the computer into Off mode.
SLEEP
Sleep is a low power mode, also referred to as Standby mode. 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.
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
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 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 TO INITIATE TO END INDICATORS
---------------------------------------------------------------------------
SLEEP Manual keys combination Press any key Flashing green
Fn+F4 Power LED
---------------------------------------------------------------------------
Time Out Default 15 minutes on Battery power
(System will not go to Sleep if on AC power)
---------------------------------------------------------------------------
HIBERNATE Manual - Press Power Press Power No Power LED
button once button once, 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 Press Power No Power LED,
shutdown via the start button once blank screen
button, or press and hold
down the power button for
4 seconds.
---------------------------------------------------------------------------
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.
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
Display brightness
Hard drive usage
Power button
Changes in operating temperature
Type and number of installed PC Cards
(04/10/2000)
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