HP 2740P manual Using external AC power, Connecting the AC adapter

Page 82

Using external AC power

External AC power is supplied through one of the following devices:

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.

●Approved AC adapter

●Optional docking device or expansion product

Connect the computer to external AC power under any of the following conditions:

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 or DVD

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 fn+f10 hotkey 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).

70 Chapter 6 Power management

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Contents HP EliteBook 2740p User Guide Product notice Safety warning notice Iv Safety warning notice Table of contents Pointing devices, touch screen, and keyboard Multimedia Power management 104 108 159 Xii Top components FeaturesIdentifying hardware Pointing devicesFeatures Lights Buttons and switches Keys Panel System and Maintenance Power Options Front componentsRight-side components Left-side components Rear components Bottom components Display Wireless antennas select models only Identifying the labels Additional hardware componentsPage Using the tablet Tablet display componentsTablet mode Rotating the displayPage Page Page Identifying wireless and network icons Using wireless devices select models onlyNetworking Using the wireless controls Using the wireless buttonUsing operating system controls Using Wireless Assistant software select models onlyUsing HP Connection Manager select models only Select Start All Programs HP HP Connection ManagerSetting up a Wlan Using a WlanProtecting your Wlan Work behind a firewall Use a wireless transmitter with built-in securityUse wireless encryption Close your networkRoaming to another network Connecting to a WlanSelect Start Connect to Using HP Mobile Broadband select models only Inserting a SIMRemoving a SIM Page Using Bluetooth wireless devices select models only Bluetooth and Internet Connection Sharing ICSTroubleshooting wireless connection problems Cannot create a Wlan connectionNetwork status icon is not displayed Cannot connect to a preferred networkCurrent network security codes are unavailable Cannot connect to the wireless router Wlan connection is very weakConnecting a modem cable Using the modem select models onlyConnecting a country-specific modem cable adapter Selecting a location setting Viewing the current location selectionAdding new locations when traveling Solving travel connection problems Connecting to a local area network LAN Using the TouchPad Using pointing devicesSetting pointing device preferences Pointing devices, touch screen, and keyboardScrolling Three finger flick Using the pen Performing other procedures with the pen Pressure sensitivityUsing the pen holder Calibrating the penTapping or clicking Using the touch screen select models onlySetting pen preferences FlickingDragging ScrollingRotating Pinching Setting touch screen preferences Using touch screen settingsUsing the keyboard Using the keyboard lightPage Using hotkeys Displaying system informationPage Initiating Sleep Switching the screen imageViewing battery charge information Enabling/disabling the TouchPadIncreasing screen brightness Decreasing screen brightnessActivating the ambient light sensor Using HP Quick Launch Buttons Using the embedded numeric keypad Using HP QuickLookUsing HP QuickWeb Using the embedded numeric keypadUsing an optional external numeric keypad Switching key functions on the embedded numeric keypadAdjusting the volume Multimedia featuresMultimedia Multimedia software Click the Notification Area tabInstalling your preloaded multimedia software Accessing your preinstalled multimedia softwareInstalling multimedia software from a disc Audio Connecting external audio devicesSelect Start All Programs Accessories Sound Recorder Checking your audio functionsPage Using the external monitor port Connecting an external monitor or projectorVideo Webcam Adjusting webcam propertiesWebcam tips Capturing business card images Page Using power-saving states Power managementSetting power options Initiating and exiting SleepInitiating and exiting Hibernation Using the battery meterUsing power plans Click HibernateSelecting a different power plan Setting password protection on wakeupViewing the current power plan Customizing power plansUsing external AC power Connecting the AC adapterUsing battery power Finding battery information in Help and SupportDisplaying the remaining battery charge Using Battery CheckInserting or removing the battery Charging a battery Managing low battery levels Maximizing battery discharge timeIdentifying low battery levels Page Resolving a low battery level Calibrating a batteryFully charge the battery Disable Hibernation and Sleep Discharge the batteryPage Fully recharge the battery Conserving battery powerStoring a battery Reenable Hibernation and SleepDisposing of a used battery Replacing the batteryShutting down the computer Testing an AC adapterClick Shut Down Page Drives Identifying installed drivesHandling drives Page Using Disk Cleanup Using Disk DefragmenterImproving hard drive performance Using HP 3D DriveGuard Identifying HP 3D DriveGuard statusUsing HP 3D DriveGuard software Replacing the hard drive in the hard drive bay Page Page Page External devices Using a USB deviceConnecting a USB device Stopping and removing a USB deviceUsing USB legacy support Connecting a 1394 device Using a 1394 deviceStopping and removing a 1394 device Page Using external drives Using optional external devicesUsing the docking connector External media cards Using Media Card Reader cardsInserting a digital card Stopping and removing a digital card Configuring an ExpressCard Using ExpressCards select models onlyInserting an ExpressCard Stopping and removing an ExpressCard Using Smart Cards select models only Inserting a smart cardRemoving a smart card Memory modules Adding or replacing a memory module Page Page Security Protecting the computerSetting passwords in Windows Using passwordsSetting passwords in Computer Setup Bios administrator password Managing a Bios administrator password Using Computer Setup DriveLock Entering a Bios administrator passwordSetting a DriveLock password Entering a DriveLock password Changing a DriveLock password Entering an Automatic DriveLock password Using Computer Setup Auto DriveLockRemoving DriveLock protection Removing Automatic DriveLock protection Viewing Computer Setup System Information Using Computer Setup security featuresSecuring system devices Using Computer Setup System IDs Using antivirus software Using firewall software Installing critical updates Using HP ProtectTools Security Manager select models only Installing a security cable Software updates Updating softwarePage Updating the Bios Determining the Bios versionDownloading a Bios update Page Updating programs and drivers Click DownloadBackup and recovery Backing up your information Using the Windows recovery tools Performing a recoverySelect Repair your computer Using f11 Using Computer Setup Computer SetupStarting Computer Setup Navigating and selecting in Computer SetupComputer Setup menus Restoring factory settings in Computer SetupFile menu Security menuSystem Configuration menu Computer SetupComputer Setup menus Select Computer Setup menus Ansi MultiBoot About the boot device orderPage Enabling boot devices in Computer Setup Considering boot order changes Setting a new boot order in Computer Setup Choosing MultiBoot preferencesDynamically choosing a boot device using the F9 prompt Setting a MultiBoot Express prompt Entering MultiBoot Express preferencesConfiguring and deploying a software image Using Client Management SolutionsManagement and printing Managing and updating software HP Client Manager for Altiris select models onlyPage HP CCM Client Configuration Manager select models only HP SSM System Software Manager Using the MEBx setup utility menus Using Intel Active Management Technology select models onlyEnabling the iAMT solution Intel ME ConfigurationIAMT Configuration Change Intel ME PasswordUsing the HP Universal Print Driver select models only Cleaning guidelines Cleaning productsCleaning the sides and cover Cleaning proceduresCleaning the display Cleaning the TouchPad and keyboardSymbols/Numerics IndexUSB Jacks Ssid SIM AMT
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2740P specifications

The HP 2740P is a versatile and robust convertible tablet PC that was designed for professionals seeking flexibility and high performance. Launched as part of HP's Elite series, this model is known for its business-oriented features and solid build quality.

One of the standout features of the HP 2740P is its 12.1-inch display, which boasts a resolution of 1280 x 800 pixels. This screen supports multi-touch functionality, allowing users to navigate and interact through gestures. The display is also built with an integrated capacitive digitizer, supporting the use of an optional stylus for more precise input, which is particularly useful for note-taking and graphic work.

Powered by Intel’s Core i5 and i7 processors from the first generation, the HP 2740P handles multitasking efficiently. It supports up to 8 GB of RAM, ensuring that demanding applications run smoothly. The device comes with various storage options, including solid state drives (SSD) or traditional hard drives (HDD), giving users flexibility and speed according to their needs.

Connectivity is one of the strong points of the HP 2740P. It includes multiple USB 2.0 ports, an ExpressCard slot, an SD card reader, and VGA and DisplayPort outputs, facilitating easy connection to various peripherals and external displays. Additionally, the device is equipped with Wi-Fi and optional mobile broadband capability, allowing users to stay connected on the go.

Security features are also robust, including a fingerprint reader and a Smart Card reader, which helps in safeguarding sensitive data. The device’s build quality is noteworthy, featuring a durable casing that meets military specifications for ruggedness, making it a reliable choice for professionals in challenging environments.

The HP 2740P operates with Windows 7 Professional but can also be upgraded to later versions, enhancing usability in today’s tech landscape. This tablet PC strikes an excellent balance between portability and capability, making it ideal for business users, educators, and creative professionals.

In summary, the HP 2740P is a well-equipped convertible tablet that encapsulates the blend of functionality and adaptability. Its combination of performance, security features, and connectivity options positions it as a formidable tool for those looking to enhance productivity in a compact form factor.
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