Connecting the AC adapter | HP dm4-1160us, dm4-1162us specs

WARNING! Do not charge the computer battery while you are onboard aircraft.

●When you are charging or calibrating a battery

●When you are installing or modifying system software

●When you are writing information to a CD, DVD, or BD

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 f3 action key or reconnect the AC adapter.

Connecting the AC adapter

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) 3- pin 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 AC adapter into the power connector (1) on the computer.

2.Plug the power cord into the AC adapter (2).

3.Plug the other end of the power cord into an AC outlet (3).

Using external AC power 53

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HP dm4-1160us, dm4-1162us manual Connecting the AC adapter

Contents

HP Pavilion Notebook PC Product notice Safety warning notice Iv Safety warning notice Table of contents Pointing devices and keyboard Power management Drives Disabling and enabling QuickWeb 104 TouchPad FeaturesIdentifying the hardware Top components Lights Component Description Power light White Power is on Panel System and Security Power Options Power button and fingerprint reader Fn key Keys Right-side components Front components Left-side components Display components Bottom components Wireless antennas Component Description Additional hardware components Labels Component Description Icon Name Description Using wireless devicesIdentifying wireless and network status icons Networking Using the wireless controls Using the wireless action keyUsing HP Wireless Assistant software Using operating system controls Using a Wlan Protecting your Wlan Setting up a Wlan Connecting to a Wlan Using HP Mobile Broadband select models only Roaming to another networkInserting a SIM Removing a SIM Bluetooth and Internet Connection Sharing ICS Using Bluetooth wireless devices Troubleshooting wireless connection problems Cannot connect to a WlanCannot connect to a preferred Wlan network Current Wlan network security codes are unavailable Network icon is not displayed Connecting to a local area network LAN Cannot connect to the wireless routerWlan connection is very weak Page Pointing devices and keyboard Using pointing devicesSetting pointing device preferences Using the TouchPad Selecting Scrolling Using TouchPad gestures Using the action keys Connecting an external mouseIcon Action Description Using the hotkeys Icon Function Hotkey Description Cleaning the TouchPad and keyboard Pointing devices and keyboard Multimedia features MultimediaIdentifying your multimedia components Multimedia Using the media activity functions Using the media activity action keysMultimedia software Opening preinstalled multimedia software Using HP MediaSmart softwareUsing other multimedia software Checking your audio functions Installing multimedia software from a discConnecting external audio devices Audio Video Using the audio-out headphone jackUsing the audio-in microphone jack Using the external monitor port Connecting an Hdmi device Identifying the installed optical drive Configuring audio for Hdmi select models onlyOptical drive LightScribe CD or Using optical discs CDs, DVDs, and BDsSelecting the right disc CDs, DVDs, and BDs CD-R discs Playing a CD, DVD, or BD Changing DVD region settings Configuring AutoPlay Observing the copyright warning Copying a CD or DVDCreating burning a CD, DVD, or BD Removing an optical disc CD, DVD, or BD Computer does not detect the optical drive Troubleshooting Disc does not play Preventing playback disruptions Movie stops, skips, or plays erratically Disc does not play automatically Movie is not visible on an external display Device driver must be reinstalled Obtaining the latest HP device drivers Webcam Adjusting webcam properties Initiating and exiting Sleep Power managementSetting power options Using power-saving states Initiating and exiting Hibernation Using the battery meterUsing power plans Viewing the current power plan Customizing power plans Using external AC powerSetting password protection on wakeup Selecting a different power plan Connecting the AC adapter Using battery power Testing an AC adapterIdentifying batteries Inserting or removing the battery Finding battery information in Help and SupportUsing Battery Check Displaying the remaining battery chargePage Charging a battery Maximizing battery discharge timeManaging low battery levels Calibrating a battery Identifying low battery levelsResolving a low battery level Disable Hibernation and Sleep Fully charge the battery Discharge the battery Fully recharge the batteryReenable Hibernation and Sleep Disposing of a used battery Switching between graphics modes select models onlyConserving battery power Storing a battery Click Shut down Shutting down the computer Identifying installed drives DrivesHandling drives Improving hard drive performance Using HP ProtectSmart Hard Drive ProtectionUsing Disk Defragmenter Using Disk Cleanup Identifying HP ProtectSmart Hard Drive Protection status Using HP ProtectSmart Hard Drive Protection software Replacing the hard drive Page Page Page Page Removing a USB device Using a USB deviceConnecting a USB device External devices Using an eSATA device Connecting an eSATA deviceRemoving an eSATA device Page Using Digital Media Slot cards External media cardsInserting a digital card Removing a digital card Adding or replacing memory modules Memory modulesPage Page Upgrading a memory module in the primary memory module slot Page Page Page Protecting the computer Using passwordsComputer risk Security feature Security Setting passwords in Windows Setting passwords in Setup UtilityPassword Function Managing an administrator password Administrator password Power-on password Using antivirus software Using firewall software Installing critical security updatesInstalling an optional security cable Locating the fingerprint reader Using the fingerprint reader Registering fingerprints Using your registered fingerprint to log on to Windows Disabling and enabling QuickWeb HP QuickWeb Changing the language of Setup Utility Setup UtilityStarting Setup Utility Using Setup Utility Navigating and selecting in Setup Utility Restoring default settings in Setup UtilityDisplaying system information Main menu Setup Utility menusExiting Setup Utility System Configuration menu Primary Hard Disk Self Test Diagnostics menu Software updates Updating the BiosDetermining the Bios version Updating programs and drivers Downloading a Bios updatePage Creating recovery discs Backup and Recovery Backing up your information Create a system restore point Using Windows Backup and RestoreUsing system restore points When to create restore points Performing a recovery Recovering from the recovery discsRestore to a previous date and time Click System Recovery in the Recovery Manager window Index Symbols/Numerics DVD-ROM SIM SSD