HP Pavilion Dm1 4400 Notebook Pc Series Manual

Icon Key Description
f8Plays the next track of an audio CD or the next section of a DVD or a BD.
f9Decreases speaker volume incrementally as long as you hold down the key.
f10Increases speaker volume incrementally as long as you hold down the key.
f11Mutes or restores speaker sound.
f12Turns the wireless feature on or off.
NOTE:A wireless network must be set up before a wireless connection is possible.
Using Microsoft Windows 8 shortcut keys 
Microsoft Windows 8 provides shortcuts to perform actions...

Function Hot key Description
Display system information.fn+escDisplays information about system hardware components and the
system BIOS version number.
Control the bass settings.fn+bEnables or disables the Beats Audio bass settings.
Beats Audio is an enhanced audio feature that provides a deep,
controlled bass while maintaining a clear sound. Beats Audio is
enabled by default.
You can also view and control the bass settings through the
Windows operating system. To view and control the bass properties:...

6 Managing power
Your computer can operate on either battery power or external power. When the computer is only
running on battery power and an AC power source is not available to charge the battery, it is
important to monitor and conserve the battery charge. Your computer supports power plans to
manage how your computer uses and conserves power so that you can balance computer
performance with power conservation.
IMPORTANT:Do not attempt to replace your computer battery, which is installed at the...

●Press a key on the keyboard.
●Tap or swipe the TouchPad.
When the computer exits Sleep, the power lights turn on and the computer displays the screen as it
was when you stopped working.
NOTE:If you have set a password to be required on wakeup, you must enter your Windows
password before the computer will return to the screen.
Enabling and exiting user-initiated Hibernation
You can enable user-initiated Hibernation and change other power settings and timeouts using Power
Options in Windows Control Panel...

Different power meter icons indicate whether the computer is running on battery or external power.
The icon also displays a message if the battery has reached a low or critical battery level.
Selecting a power plan
A power plan manages how the computer uses power and helps you conserve power and maximize
performance. To change the power plan, from the Start screen, type power, select Settings, and
then select Power Options.
The following power plans are available:
●Balanced (recommended). Automatically...

CAUTION:Removing a battery that is the sole power source for the computer can cause loss of
information. To prevent loss of information, save your work and initiate Hibernation or shut down the
computer through Windows before removing the battery.
1.Turn the computer upside down on a flat surface.
2.Slide the battery release latch (1) to release the battery.
NOTE:The battery release latch automatically returns to its original position.
3.Pivot the battery (2) upward and remove it from the computer (3)....

●Disconnect unused external devices that are not plugged into an external power source, such as
an external hard drive connected to a USB port.
●Stop, disable, or remove any external media cards that you are not using.
●Before you leave your work, initiate Sleep or Hibernation, or shut down the computer.
Identifying low battery levels
When a battery that is the sole power source for the computer reaches a low or critical battery level,
the following behavior occurs:
●The battery light (select models...

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.
Disposing of a user-replaceable battery
WARNING!To reduce the risk of fire or burns, do not disassemble, crush, or puncture; do not short
external contacts; do not dispose of in fire or water.
See the Regulatory, Safety and Environmental Notices for proper battery disposal. To access the
user guides, select the HP Support Assistant app on the Start screen,...

Troubleshooting 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...

Shut down the computer under any of the following conditions:
●When you are connecting an external hardware device that does not connect to a USB or video
port
●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 button, the recommended procedure is to
use the Windows Shut down command:
NOTE:If the computer is in the Sleep state or in Hibernation, you must first exit Sleep or
Hibernation before shutdown is...