HP Pavilion Dm4 3000 Entertainment Notebook Pc Series Manual

Shutting down the computer
CAUTION:Unsaved information is lost when the computer shuts down.
The Shut down command closes all open programs, including the operating system, and then turns
off the display and computer.
Shut down the computer under any of the following conditions:
●When you need to replace the battery or access components inside the computer
●When the computer will be unused and disconnected from external power for an extended
period
Although you can shut down the computer with the power...

Initiating and exiting Sleep
The system is set at the factory to initiate Sleep after a period of inactivity when running on battery
power or on external power.
Power settings and timeouts can be changed using Power Options in Windows® Control Panel.
With the computer on, you can initiate Sleep in any of the following ways:
●Briefly press the power button.
●Close the display.
●Select Start, click the arrow next to the Shut down button, and then click Sleep.
To exit Sleep:
●Briefly press the power...

Using the power meter
The power meter is located in the notification area, at the far right of the taskbar. The power meter
allows you to quickly access power settings and view the remaining battery charge.
●To display the percentage of remaining battery charge and the current power plan, move the
pointer over the power meter icon.
●To access Power Options, or to change the power plan, click the power meter icon and select an
item from the list.
Different power meter icons indicate whether the computer...

Setting password protection on wakeup
To set the computer to prompt for a password when the computer exits Sleep or Hibernation, follow
these steps:
1.Select Start > Control Panel > System and Security > Power Options.
2.In the left pane, click Require a password on wakeup.
3.Click Change Settings that are currently unavailable.
4.Click Require a password (recommended).
NOTE:If you need to create a user account password or change your current user account
password, click Create or change your user...

Using battery power
When a charged battery is in the computer and the computer is not plugged into external power, the
computer runs on battery power. When the computer is plugged into external AC power, the
computer runs on AC power.
If the computer contains a charged battery and is running on external AC power, the computer
switches to battery power if the AC adapter is disconnected from the computer.
NOTE:When you disconnect AC power, the display brightness is automatically decreased to save
battery...

Displaying the remaining battery charge
▲Move the pointer over the power meter icon in the notification area, at the far right of the taskbar.
Maximizing battery discharge time
Battery discharge time varies depending on the features you use while on battery power. Maximum
discharge time gradually decreases as the battery storage capacity naturally degrades.
Tips for maximizing battery discharge time:
●Lower the brightness on the display.
●Select the Power saver setting in Power Options.
●Remove the...

Resolving a low battery level
Resolving a low battery level when external power is available
▲Connect one of the following devices:
●AC adapter
●Optional docking or expansion device
●Optional power adapter purchased as an accessory from HP
Resolving a low battery level when a charged battery is available
1.Turn off the computer or initiate Hibernation.
2.Replace the discharged battery with a charged battery.
3.Turn on the computer.
Resolving a low battery level when no power source is available
●Initiate...

Conserving battery power
●Select low power-use settings through Power Options in Windows Control Panel.
●Turn off wireless and local area network (LAN) connections and exit modem applications when
you are not using them.
●Disconnect unused external devices that are not plugged into an external power source.
●Stop, disable, or remove any external media cards that you are not using.
●Decrease screen brightness.
●Before you leave your work, initiate Sleep or Hibernation, or shut down the computer.
Storing a...

Using external AC power
NOTE:For information on connecting to AC power, refer to the Setup Instructions 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...