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 quickly. Several shortcuts will help you
with Windows 8 functions. Press the Windows logo key 
 in combination with the key to perform
the action.
For additional information on Windows 8 shortcut keys, go to Help and Support. From the Start
screen, type h, and then select Help and Support.
Shortcut Keys
Shortcut
key Key Description
    Returns you to the Start screen from an open app or the Desktop.
Pressing the key again returns you to the previous screen.
+cOpens the charms.
+dOpens the Desktop.
+tabSwitches between open apps.
NOTE:Continue to press this key combination until the app you
want displays.
alt+f4Closes an active app.
Using the hot keys
A hot key is a combination of the fn key and the esc key, the b key, or the spacebar.
To use a hot key:
▲Briefly press the fn key, and then briefly press the second key of the combination.
Using the keyboard and mouse 31 
						

							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:
From the Start screen, type c, and then select Control Panel from
the list of apps. Select Hardware and Sound > Beats Audio
Control Panel.
32 Chapter 5   Navigating using touch gestures, pointing devices and the keyboard 
						

							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 factory.
Your computer has an internal rechargeable battery that can be replaced only by an authorized
service provider. To monitor the status of your battery, or if the battery is no longer holding a charge,
run Battery Check in Help and Support. To access Help and Support, from the Start screen, type
help, and then select Help and Support from the list of apps. If Battery Check indicates that your
battery should be replaced, contact support.
Initiating Sleep and Hibernation
Microsoft® Windows has two power-saving states, Sleep and Hibernation.
●Sleep–The Sleep state is automatically initiated after a period of inactivity when running on
battery power or on external power. Your work is saved to memory, allowing you to resume your
work very quickly. You can also initiate Sleep manually. For more information, see 
Initiating and
exiting Sleep on page 33
●The Hibernation state is automatically initiated if the battery reaches a critical level. In the
Hibernation state, your work is saved to a hibernation file and the computer powers down.
NOTE:If you want to initiate Hibernation manually, you must enable Hibernation using Power
Options. For more information, see 
Enabling and exiting user-initiated Hibernation on page 34
CAUTION:To reduce the risk of possible audio and video degradation, loss of audio or video
playback functionality, or loss of information, do not initiate Sleep while reading from or writing to a
disc or an external media card.
NOTE:You cannot initiate any type of networking connection or perform any computer functions
while the computer is in the Sleep state or in Hibernation.
Initiating and exiting Sleep
With the computer on, you can initiate Sleep in any of the following ways:
●Close the display.
●From the Start screen, point to the upper-right or lower-right corner of the screen. When the
charms list opens, click Settings, click the Power icon, and then click Sleep.
To exit Sleep:
●Briefly press the power button.
●If the display is closed, open the display.
Initiating Sleep and Hibernation 33 
						

							●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 as follows:
1.From the Start screen, type power, select Settings, and then select Power Options from the
list of applications.
2.In the left pane, click Choose what the power button does.
3.Click Change Settings that are currently unavailable.
4.In the When I press the power button area, select Hibernate.
5.Click Save changes.
To exit Hibernation, briefly press the power button. 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.
Setting password protection on wakeup
To set the computer to prompt for a password when exiting Sleep, follow these steps:
1.From the Start screen, type power, select Settings, and then select Power Options.
2.In the left pane, select 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 account password, and then follow the on-
screen instructions.
5.Click Save changes.
Using the power meter and power settings
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, on the
Windows Desktop, point over the power meter icon.
●To use Power Options, or to change the power plan, click the power meter icon and select an
item from the list. From the Start screen, you can also type power, select Settings, and then
select Power Options.
34 Chapter 6   Managing power 
						

							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 balances performance with energy consumption on
capable hardware.
●Power saver. Saves power by reducing system performance and screen brightness.
●High performance. Favors performance, but may use more energy. Your battery will not last as
long between charges using this power plan. Click Show additional plans to select this power
plan.
You can also create your own power plan and customize it to suit your needs.
Use Windows Control Panel to select a power plan or to create your own plan.
To access the Power Options in the Control Panel, from the Start screen, type power options.
When the Charms displays, select Settings, and then select Power Options. Select a power plan
from the list.
Running on 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 and the display brightness decreases to conserve battery life. The
battery in the computer slowly discharges when the computer is off and unplugged from external
power.
Computer battery life varies, depending on power management settings, programs running on the
computer, display brightness, external devices connected to the computer, and other factors.
Factory-sealed battery
To monitor the status of your battery, or if the battery is no longer holding a charge, run Battery Check
in HP Support Assistant. To access battery information, select the HP Support Assistant app from
the Start screen, and then select Battery and performance. If Battery Check indicates that your
battery should be replaced, contact support.
Removing a user-replaceable battery
Your computer may include a user-replaceable battery.
WARNING!To reduce potential safety issues, use only the user-replaceable battery provided with
the computer, a replacement battery provided by HP, or a compatible battery purchased from HP.
Selecting a power plan 35 
						

							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).
Finding battery information
To monitor the status of your battery, or if the battery is no longer holding a charge, run Battery Check
in HP Support Assistant. To access battery information, select the HP Support Assistant app on the
Start screen, and then select Battery and performance.
Help and Support provides the following tools and information about the battery:
●Battery test
●Information on battery types, specifications, life cycles, and capacity
To access battery information, select the HP Support Assistant app from the Start screen, and then
select Battery and performance.
Conserving battery power
Tips for conserving battery power and maximizing battery life:
●Lower the brightness on the display.
●Select the Power saver setting in Power Options.
●Turn off wireless devices when you are not using them.
36 Chapter 6   Managing power 
						

							●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 only) indicates a low or critical battery level.
– or –
●The Power Meter icon on the Desktop shows a low or critical battery notification.
NOTE:For additional information about the power meter, see Using the power meter and
power settings on page 34.
The computer takes the following actions for a critical battery level:
●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.
●If Hibernation is enabled and the computer is on or in the Sleep state, the computer initiates
Hibernation.
Resolving a low battery level
Resolving a low battery level when external power is available
●Connect an AC adapter.
●Connect an optional docking or expansion device.
●Connect an optional power adapter purchased as an accessory from HP.
Resolving a low battery level when no power source is available
●Initiate Hibernation.
●Save your work and shut down the computer.
Resolving a low battery level when the computer cannot exit Hibernation
When the computer lacks sufficient power to exit Hibernation, follow these steps:
1.Replace the discharged user-replaceable battery with a charged battery, or connect the AC
adapter to the computer and to external power.
2.Exit Hibernation by pressing the power button.
Storing a user-replaceable 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 in a cool, dry place to prolong the battery charge.
Running on battery power 37 
						

							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, select My computer, and
then select User guides.
Replacing a user-replaceable battery
Battery Check in Help and Support notifies you to replace the battery when an internal cell is not
charging properly or when the battery storage capacity has reached a weak condition. If the battery is
possibly covered by an HP warranty, instructions include a warranty ID. A message refers you to the
HP website for more information about ordering a replacement battery.
Running on external AC power
For information about connecting to AC power, see the Setup Instructions included with your
computer.
The computer does not use battery power when the computer is connected to external power with an
approved AC adapter or an optional docking/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 power under any of the following conditions:
WARNING!Do not charge the computer battery while you are onboard an aircraft.
●When charging or calibrating a battery
●When installing or modifying system software
●When writing information to a disc (select models only)
●When running Disk Defragmenter on computers with internal hard drives
●When performing a backup or recovery
When you connect the computer to external power:
●The battery begins to charge.
●The display brightness increases.
●The Power Meter icon in the notification area on the Desktop changes appearance.
When you disconnect external power, the following events occur:
●The computer switches to battery power.
●The display brightness automatically decreases to save battery life.
●The Power Meter icon in the notification area on the Desktop changes appearance.
38 Chapter 6   Managing power 
						

							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 remain off, check the connection from the AC adapter to the computer
and the connection from the AC adapter to the AC outlet to make sure the connections are
secure.
●If the connections are secure and the power lights remain off, the AC adapter is not
functioning and should be replaced.
Contact customer support for information on obtaining a replacement AC power adapter.
HP CoolSense (select models only)
HP CoolSense  automatically detects when the computer is not in a stationary position and
adjusts performance and fan settings to keep the surface temperature of your computer at the
optimum level of comfort.
When HP CoolSense is off, the position of the computer is not detected and the performance and fan
options remain at the default settings. As a result, the surface temperature of the computer may be
higher than it would be with HP CoolSense on.
To turn CoolSense off or on, follow these steps:
▲From the Start screen, type control, select Control Panel, select Hardware and Sound, and
then select HP CoolSense.
Shutting down (turning off) 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.
Troubleshooting an AC adapter 39 
						

							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 possible.
1.Save your work and close all open programs.
2.From the Start screen, point to the far-right upper- or lower-right corner of the screen. When
Charms displays, click Settings. Click the Power icon, and then select Shut down.
If the computer is unresponsive and you are unable to use the preceding shutdown procedures, try
the following emergency procedures in the sequence provided:
●Press ctrl+alt+delete, and then click the Power icon in the lower-right corner of the screen, and
then select Shut down.
●Press and hold the power button for at least 5 seconds.
●Disconnect the computer from external power.
40 Chapter 6   Managing power