HP 11.6-Inch C2K41UA#ABA manual Troubleshooting an AC adapter, HP CoolSense select models only

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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

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Contents User Guide Software terms Product noticeSafety warning notice Iv Safety warning notice Table of contents Enjoying entertainment features Managing and sharing information Securing your computer and information Input power Operating environment Page Best practices Starting rightFun things to do More HP resources Resource ContentsFinding your hardware and software information Getting to know your computerFront Locating hardwareLeft side Right sideComponent Description See Using HP 3D DriveGuard select models only Display TouchPad TopLights Buttons Managing power onFn key KeysBottom Component LabelsConnecting to a wireless network Connecting to a networkUsing the wireless controls Using the wireless buttonUsing an Internet service provider Using a WlanConfiguring a wireless router Setting up a WlanProtecting your Wlan Using Bluetooth wireless devices Connecting to a wired networkConnecting to a Wlan Connecting to a local area network LAN Multimedia Features Enjoying entertainment featuresUsing audio Using the webcamConnecting speakers Connecting a microphone Connecting headphonesUsing Beats Audio Checking the soundConnecting a VGA monitor or projector Using videoConfiguring audio settings with Hdmi TV Connecting an Hdmi TV or monitorManaging your audio and video files Using TouchPad gestures Using the TouchPadScrolling TappingRotating select models only Pinching/zoomingFlicking select models only Finger click select models onlyRight-edge swipe Edge swipesTop-edge swipe Left-edge swipe Using the keyboard and mouseUsing the action keys Using the keysIcon Key Description Using the hot keys Using Microsoft Windows 8 shortcut keysShortcut Key Description List of apps. Select Hardware and Sound Beats Audio Function Hot key DescriptionControl Panel Initiating Sleep and Hibernation Managing powerInitiating and exiting Sleep Setting password protection on wakeup Using the power meter and power settingsEnabling and exiting user-initiated Hibernation Running on battery power Selecting a power planFactory-sealed battery Removing a user-replaceable batteryConserving battery power Finding battery informationResolving a low battery level Identifying low battery levelsStoring a user-replaceable battery Disposing of a user-replaceable battery Running on external AC powerReplacing a user-replaceable battery HP CoolSense select models only Troubleshooting an AC adapterShutting down turning off the computer Page Connecting a USB device Using a USB deviceManaging and sharing information Type DescriptionInserting and removing a digital storage card Connecting a powered USB deviceRemoving a USB device Using optical drives Inserting an optical disc Removing an optical disc Select Open Network and Sharing Center Sharing data and drives and accessing softwarePage Improving performance Maintaining your computerHandling drives Replacing a hard driveRemoving the hard drive Installing a hard drive Page Using Disk Defragmenter Using HP 3D DriveGuard select models onlyUsing Disk Cleanup Adding or replacing memory modules Remove the service door see Removing the hard drive onPage Updating programs and drivers Cleaning your computerCleaning the TouchPad and keyboard Cleaning the display, sides, and coverTraveling with or shipping your computer Page Computer risk Security feature Using passwordsSecuring your computer and information Setting Setup Utility Bios passwords Setting Windows passwordsPassword Function Installing software updates Using Internet security softwareUsing antivirus software Using firewall softwareUsing an optional security cable lock Securing your wireless networkInstalling HP and third-party software updates Backing up your software applications and informationPage Starting Setup Utility Bios Using Setup Utility Bios and System DiagnosticsUpdating the Bios Determining the Bios versionDownloading a Bios update Using System DiagnosticsUsing System Diagnostics Creating recovery media and backups Backing up, restoring, and recoveringCreating HP Recovery media Restore and recovery Remove everything and reinstall Windows Using Windows Refresh for quick and easy recoveryWhat you need to know Recovering using HP Recovery ManagerUsing HP Recovery media to recover Removing the HP Recovery partitionChanging the computer boot order Input power SpecificationsOperating environment Electrostatic Discharge Index Symbols/Numerics 2-finger clickHdmi USB