HP Pro x2 612 G1 (Windows 8.1) manual Testing an AC adapter

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

●When charging or calibrating a battery

●When installing or modifying system software

●When writing information to a CD, a DVD, or a BD (select models only)

●When running Disk Defragmenter

●When performing a backup or recovery

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 power 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.

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 lights are off.

To test the AC adapter:

NOTE: The following instructions apply to computers with user-replaceable batteries.

1.Shut down the computer.

2.Remove the battery on 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, the AC adapter is not functioning and should be replaced. Contact support for information on obtaining a replacement AC power adapter.

54 Chapter 6 Power management

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Contents User Guide Product notice Safety warning notice Iv Safety warning notice Table of contents Connecting to a local area network LAN VGA Drives Contacting support Labels Appendix a Welcome Finding information Resources For information aboutResources Welcome Getting to know your computer Tablet edge componentsGetting to know your computer Amber The computer is connected to external power Display Component DescriptionPower keyboard TopTouchPad Lights Keys Fn keyRight side Left side Releasing the tablet from the power keyboard RearChanging your tablets settings Adjusting your tablets autorotate lockAdjusting your tablets screen brightness Changing your tablets viewConnecting to a network Connecting to a wireless networkUsing the wireless controls Using the wireless buttonUsing operating system controls Using a WlanUsing an Internet service provider Configuring a wireless router Setting up a WlanProtecting your Wlan Using HP Mobile Broadband select models only Connecting to a WlanUsing GPS select models only Inserting and removing a SIMUsing Bluetooth wireless devices Connecting to a wired networkConnecting to a local area network LAN Page Connecting to a network Setting pointing device preferences Using pointing devicesUsing the TouchPad and gestures Turning the TouchPad off and on TappingScrolling Finger pinch zoomFinger click Rotating select models onlyFlicking select models only Edge swipes select models onlyLeft-edge swipe Using touch screen gestures Setting touch screen preferencesOne-finger slide Tapping Pinching/stretchingRotating select models only Edge swipes Right-edge swipeLeft-edge swipe Using the digitizer pen select models only Identifying the pen componentsHolding the pen Top-edge swipe and bottom-edge swipeUsing the keyboard Using the on-screen keyboardStoring the pen Using Windows shortcut keys Identifying the hot keysDescription Using keypads Using the embedded numeric keypadUsing an optional external numeric keypad Turning the embedded numeric keypad on and offConnecting speakers Adjusting the volumeMultimedia AudioWebcams Connecting headphones and microphonesChecking audio functions on the computer Video VGADisplayPort Connecting wired displays using MultiStream Transport Multimedia Power management Shutting down the computerSetting power options Using power-saving statesUsing the power meter and power settings Initiating and exiting SleepSetting password protection on wakeup Using battery powerFactory-sealed battery Finding additional battery information Using Battery CheckDisplaying the remaining battery charge Maximizing battery discharge timeUsing external AC power Conserving battery powerTesting an AC adapter External cards and devices Using memory card readersInserting a memory card Using smart cards Removing a memory cardInserting a smart card Using a USB deviceRemoving a smart card Connecting a USB device Using optional external devicesRemoving a USB device Using optional external drives External cards and devices Using Disk Defragmenter DrivesHandling drives Improving hard drive performanceUsing Disk Cleanup Security Using passwordsProtecting the computer Setting passwords in Windows Password FunctionSetting passwords in Computer Setup Managing a Bios administrator passwordManaging a Computer Setup DriveLock password Entering a Bios administrator passwordSetting a DriveLock password Entering a DriveLock password Changing a DriveLock passwordEntering an Automatic DriveLock password Using Computer Setup Automatic DriveLockRemoving DriveLock protection Using firewall software Using antivirus softwareRemoving Automatic DriveLock protection Installing critical security updates Using HP Client SecurityUsing the fingerprint reader select models only Locating the fingerprint readerSecurity Maintenance Cleaning your computerCleaning procedures Cleaning the display All-in-Ones or NotebooksUpdating programs and drivers Using SoftPaq Download Manager Cleaning the TouchPad, keyboard, or mouseBackup and recovery Performing a system recoveryUsing the Windows recovery tools Backing up your informationUsing f11 recovery tools Using Windows operating system media purchased separately Using Windows Refresh or Windows Reset Using HP Software SetupStarting Computer Setup Using Computer SetupNavigating and selecting in Computer Setup Restoring factory settings in Computer Setup Select Main Restore DefaultsDetermining the Bios version Updating the BiosDownloading a Bios update Using MultiBoot About the boot device orderChoosing MultiBoot preferences Synchronizing the tablet and keyboardSetting a new boot order in Computer Setup Dynamically choosing a boot device using the f9 promptSetting a MultiBoot Express prompt Using HP PC Hardware Diagnostics UefiEntering MultiBoot Express preferences Downloading HP PC Hardware Diagnostics Uefi to a USB device Diagnostic section, click HP Uefi Support EnvironmentPage Support Contacting supportLabels Input power SpecificationsOperating environment Specifications Traveling with the computer Appendix a Traveling with the computer Troubleshooting Troubleshooting resourcesResolving issues Computer is unable to start upSoftware is functioning abnormally Computer is on but not respondingComputer is unusually warm An external device is not workingDisc does not play Wireless network connection is not workingMovie is not visible on an external display Page Electrostatic discharge Appendix C Electrostatic discharge Symbols/Numerics IndexMaintenance SIM