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HP Pavilion dm3-2100 HP Pavilion Entertainment PC User Guide - Windows 7 - Page 51

Connecting AC power, Testing an AC adapter

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When you connect the computer to external AC power, the following events occur: ● The battery begins to charge. ● If the computer is turned on, the battery meter icon in the notification area changes appearance. When you disconnect external AC power, the following events occur: ● The computer switches to battery power. ● The display brightness is automatically decreased to save battery life. To increase display brightness, press the f2 hotkey or reconnect the AC adapter. Connecting AC power WARNING! To reduce the risk of electric shock or damage to the equipment: Plug the power cord into an AC outlet that is easily accessible at all times. Disconnect power from the computer by unplugging the power cord from the AC outlet (not by unplugging the power cord from the computer). If provided with a 3-pin attachment plug on the power cord, plug the cord into a grounded (earthed) 3pin outlet. Do not disable the power cord grounding pin, for example, by attaching a 2-pin adapter. The grounding pin is an important safety feature. To connect the computer to external AC power: 1. Plug the adapter into the power connector (1) on the computer. 2. Plug the power cord into the adapter (2). 3. Plug the other end of the power cord into an AC outlet (3). 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 light is off. Using external AC power 41

Section	Page
Getting started	11
Using HP QuickWeb (select models only)	11
Features	12
Identifying hardware	12
Components	12
Top components	12
TouchPad	12
Lights	13
Keys	14
Front components	15
Right-side components	15
Left-side components	16
Bottom components	18
Display components	19
Wireless antennas	20
Additional hardware components	21
Labels	21
Wireless and local area networks	23
Using wireless devices	23
Identifying wireless and network status icons	23
Using the wireless controls	24
Using the wireless button	24
Using Wireless Assistant software	25
Using HP Connection Manager (select models only)	25
Using operating system controls	25
Using a WLAN	26
Setting up a WLAN	26
Protecting your WLAN	26
Roaming to another network	27
Using HP Mobile Broadband (select models only)	27
Inserting a SIM	28
Removing a SIM	29
Using Bluetooth wireless devices	29
Bluetooth and Internet Connection Sharing (ICS)	30
Troubleshooting wireless connection problems	30
Cannot connect to a WLAN	30
Cannot connect to a preferred WLAN network	31
Network icon for WLAN is not displayed	31
Current WLAN network security codes are unavailable	31
WLAN connection is very weak	32
Cannot connect to the wireless router	32
Connecting to a local area network (LAN)	32
Pointing devices and keyboard	34
Using pointing devices	34
Setting pointing device preferences	34
Using the TouchPad	34
Two-finger scrolling	34
Rotating (select models only)	35
Pinching (select models only)	35
Using the action keys	36
Using the hotkeys	37
Using keypads	38
Using the embedded numeric keypad	39
Enabling and disabling the embedded numeric keypad	39
Switching key functions on the embedded numeric keypad	40
Using an optional external numeric keypad	40
Cleaning the TouchPad and keyboard	40
Multimedia	41
Multimedia features	41
Adjusting the volume	41
Using the media activity keys	42
Multimedia software	42
Using HP MediaSmart software	43
Using multimedia software	43
Installing multimedia software from a disc	43
Audio	43
Connecting external audio devices	44
Checking your audio functions	44
Video	45
Connecting an external monitor or projector	45
Connecting an HDMI device	45
Configuring audio for HDMI (select models only)	46
Webcam	46
Webcam tips	47
Adjusting webcam properties	47
Power management	48
Setting power devices	48
Using power-saving states	48
Initiating and exiting Sleep	48
Initiating and exiting Hibernation	49
Using the battery meter	49
Using power plans	49
Viewing the current power plan	49
Selecting a different power plan	50
Customizing power plans	50
Setting password protection on wakeup	50
Using external AC power	50
Connecting AC power	51
Testing an AC adapter	51
Using battery power	52
Finding battery information in Help and Support	52
Using Battery Check	52
Displaying the remaining battery charge	53
Inserting or removing the battery	53
Charging a battery	54
Maximizing battery discharge time	55
Managing low battery levels	55
Identifying low battery levels	55
Resolving a low battery level	56
Resolving a low battery level when external power is available	56
Resolving a low battery level when a charged battery is available	56
Resolving a low battery level when no power source is available	56
Resolving a low battery level when the computer cannot exit Hibernation	56
Calibrating a battery	56
Step 1: Fully charge the battery	56
Step 2: Disable Hibernation and Sleep	57
Step 3: Discharge the battery	57
Step 4: Fully recharge the battery	58
Step 5: Reenable Hibernation and Sleep	58
Conserving battery power	58
Storing a battery	59
Disposing of a used battery	59
Replacing the battery	59
Shutting down the computer	59
Memory modules	61
Drives and external devices	64
Drives	64
Identifying installed drives	64
Handling drives	64
Improving hard drive performance	65
Using Disk Defragmenter	65
Using Disk Cleanup	66
Replacing the hard drive in the hard drive bay	66
Using HP ProtectSmart Hard Drive Protection (select models only)	68
Identifying HP ProtectSmart Hard Drive Protection status	68
Managing power with a parked hard drive	69
Using HP ProtectSmart Hard Drive Protection software	69
Using external drives	69
Connecting optional external drives	70
Sharing optical drives	70
External devices	71
Using a USB device	71
Connecting a USB device	71
Removing a USB device	71
Using Digital Media Slot cards	72
Inserting a digital card	72
Removing a digital card	73
Security	74
Protecting the computer	74
Using passwords	74
Setting passwords in Windows	75
Setting passwords in Setup Utility	75
Administrator password	76
Managing an administrator password	76
Entering an administrator password	76
Power-on password	77
Managing a power-on password	77
Entering a power-on password	77
Using antivirus software	77
Using firewall software	78
Installing critical security updates	78
Installing an optional security cable	78
Changing QuickWeb settings	80
Turning HP QuickWeb on and off	80
Setup Utility (BIOS)	81
Starting Setup Utility	81
Using Setup Utility	81
Navigating and selecting in Setup Utility	81
Changing the language of Setup Utility	81
Displaying system information	82
Restoring default settings in Setup Utility	82
Exiting Setup Utility	83
Setup Utility menus	83
Main menu	83
Security menu	83
System Configuration menu	83
Diagnostics menu	84
Updating the BIOS	84
Determining the BIOS version	84
Downloading a BIOS update	85
Updating programs and drivers	86
Backup and recovery	87
Creating recovery discs	87
Backing up your information	88
Using Windows Backup and Restore	89
Using system restore points	89
When to create restore points	89
Create a system restore point	89
Restore to a previous date and time	90
Performing a recovery	90
Recovering using the recovery discs	90
Recovering using the dedicated recovery partition	90