HP Pavilion Dm3 3100 Entertainment Notebook Pc Series Manual

4 Power management
NOTE:A computer may have a power button or a power switch. The term power button is used
throughout this guide to refer to both types of power controls.
NOTE:Windows 7 uses Sleep and Windows XP uses Standby. The term Sleep is used throughout
this guide to refer to both. Differences between the operating systems that affect any of the
procedures are noted.
Shutting down the computer
CAUTION:Unsaved information is lost when the computer shuts down.
The Shut down command closes all open...

If the computer is unresponsive and you are unable to use the preceding shutdown procedures, try
the following emergency procedures in the sequence provided:
●Windows 7—Press ctrl+alt+delete, and then click the Power button.
Windows XP—Press ctrl+alt+delete. Click Shut Down, and then click Turn Off.
●Press and hold the power button for at least 5 seconds.
●Disconnect the computer from external power and remove the battery.
Setting power options
Using power-saving states
The computer has two power-saving...

When the computer exits Sleep, the power lights turn on and your work returns to the screen where
you stopped working.
NOTE:If you have set a password to be required on wakeup, you must enter your Windows
password before your work will return to the screen.
Initiating and exiting Hibernation
The system is set at the factory to initiate Hibernation after a period of inactivity when running on
battery power or on external power, or when the battery reaches a critical battery level.
Power settings and...

Windows XP—Select Start > Control Panel > Performance and Maintenance > Power
Options.
Selecting a different power plan
Use any of the following methods:
●Click the power meter icon in the notification area, and then select a power plan from the list.
●Windows 7—Select Start > Control Panel > System and Security > Power Options, and
then select an item from the list.
Windows XP—Select Start > Control Panel > Performance and Maintenance > Power
Options, and then select an item from the list.
Customizing...

NOTE:If you need to create a user account password or change your current user account
password, click Create or change your user account password, and then follow the on-
screen instructions. If you do not need to create or change a user account password, go to step
5.
5.Click Save changes.
Windows XP
1.Right-click the Power Meter icon in the notification area, and then click Adjust Power
Properties.
2.Click the Advanced tab.
3.Select the Prompt for password when computer resumes from Standby check...

Using Battery Check in Windows 7
Battery Check in Help and Support provides information on the status of the battery installed in the
computer.
To run Battery Check:
1.Connect the AC adapter to the computer.
NOTE:The computer must be connected to external power for Battery Check to work properly.
2.Select Start > Help and Support > Troubleshoot > Power, Thermal and Mechanical.
3.Click the Power tab, and then click Battery Check.
Battery Check examines the battery and its cells to see if they are...

The computer takes the following actions for a critical battery level:
●If Hibernation is enabled and the computer is on or in the Sleep state, the computer initiates
Hibernation.
●If Hibernation is disabled and the computer is on or in the Sleep state, the computer remains
briefly in the Sleep state, and then shuts down and loses any unsaved information.
Resolving a low battery level
Resolving a low battery level when external power is available
▲Connect one of the following devices:
●AC adapter...

Storing a battery
CAUTION:To reduce the risk of damage to a battery, do not expose it to high temperatures for
extended periods of time.
If a computer will be unused and unplugged from external power for more than 2 weeks, remove the
battery and store it separately.
To prolong the charge of a stored battery, place it in a cool, dry place.
NOTE:A stored battery should be checked every 6 months. If the capacity is less than 50 percent,
recharge the battery before returning it to storage.
Calibrate a...

Using external AC power
NOTE:For information on connecting to AC power, refer to the Quick Setup poster provided in the
computer box.
External AC power is supplied through an approved AC adapter or an optional docking or expansion
device.
WARNING!To reduce potential safety issues, use only the AC adapter provided with the computer,
a replacement AC adapter provided by HP, or a compatible AC adapter purchased from HP.
Connect the computer to external AC power under any of the following conditions:...

Testing an AC adapter
Test the AC adapter if the computer exhibits any of the following symptoms when it is connected to
AC power:
●The computer does not turn on.
●The display does not turn on.
●The power lights are off.
To test the AC adapter:
1.Shut down the computer.
2.Remove the battery from the computer.
3.Connect the AC adapter to the computer, and then plug it into an AC outlet.
4.Turn on the computer.
●If the power lights turn on, the AC adapter is working properly.
●If the power lights remain...