HP 17.3 E0K82UA#ABA, E4S20UA#ABA HP CoolSense select models only, Troubleshooting power problems

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Troubleshooting power problems

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 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 factory setting. 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 cool, select Settings, and then select HP CoolSense.

Refreshing your software content with Intel Smart Connect Technology (select models only)

When the computer is in the Sleep state, Intel® Smart Connect Technology periodically causes the computer to exit Sleep. Smart Connect then updates the content for certain open applications. As a result, your work is immediately available to you as soon as you exit Sleep. You do not have to wait while updates are downloaded.

▲To enable this feature or manually adjust the settings, from the Start screen, type smart, and then select Intel® Smart Connect Technology.

HP CoolSense (select models only) 49

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Contents User Guide Software terms Product noticeSafety warning notice Iv Safety warning notice Table of contents Enjoying entertainment features Managing power Maintaining your computer Input power Operating environment Page Best practices Starting rightFun things to do More HP resources Resource ContentsLocating software Getting to know your computerFinding your hardware and software information Locating hardwareSelect User guides Right sideComponent Description Left side See Using HP 3D DriveGuard select models only Display TouchPad TopInitiating Sleep and Hibernation on LightsButtons and speakers Options, or see Managing power on Fn key KeysBottom Bottom Component LabelsUsing the wireless button Connecting to a networkConnecting to a wireless network Using the wireless controlsModeSteps Using a WlanUsing operating system controls Using an Internet service providerProtecting your Wlan Setting up a WlanConfiguring a wireless router Connecting to a Wlan Using Bluetooth wireless devices select models onlyConnecting to a local area network LAN Connecting to a wired networkMultimedia Features Enjoying entertainment featuresPorts, see Using a USB device on Connecting speakers Using the webcam select models onlyUsing audio Accessing Beats Audio Control Panel Connecting headphonesConnecting a microphone Using Beats Audio select models onlyChecking the sound To confirm or change the audio settings on your computerConnecting an Hdmi device Using videoManaging your audio and video files Using Intel Wireless Display select models onlyConfiguring Hdmi audio settings Using TouchPad gestures Using the TouchPadTapping Pinching/zooming ScrollingFinger click select models only Rotating select models onlyRight-edge swipe Flicking select models onlyEdge swipes Left-edge swipe Top-edge swipeOne-finger slide Using touch screen gestures select models onlyPinching/stretching Rotating select models only Top-edge swipe and bottom-edge swipe Using the keyboard and mouse Setting touch screen preferences select models onlyIcon Key Description Using the keysUsing the action keys Shortcut Key Description Using Microsoft Windows 8 shortcut keysSound , and then select Beats Audio Control Panel Using the integrated numeric keypadUsing the hot keys select models only Function Hot key DescriptionIntel Rapid Start Technology select models only Managing powerInitiating Sleep and Hibernation Enabling and exiting user-initiated hibernation Initiating and exiting SleepRemoving a user-replaceable battery Using the power meter and power settingsRunning on battery power Setting password protection on wakeupConserving battery power Finding battery informationStoring a user-replaceable battery Identifying low battery levelsResolving a low battery level Replacing a user-replaceable battery Running on external AC powerDisposing of a user-replaceable battery HP CoolSense select models only Troubleshooting power problemsShutting down turning off the computer Type Description Using a USB deviceManaging and sharing information Removing a USB device Connecting a USB deviceConnecting a powered USB device Inserting and removing a digital storage card Using optical drives Tray-load Inserting an optical discRemoving an optical disc When the disc tray opens normally Sharing data and drives and accessing software Select Open Network and Sharing Center Handling drives Maintaining your computerImproving performance Replacing the primary hard drive Page Replacing the secondary hard drive select models only Page Using Disk Defragmenter Using HP 3D DriveGuard select models onlyAdding or replacing memory modules Using Disk CleanupPage Page Page Updating programs and drivers Cleaning your computerCleaning the display, sides, and cover Cleaning the TouchPad and keyboardTraveling with or shipping your computer Securing your computer and information Using passwordsComputer risk Security feature Password Function Setting Windows passwordsSetting Setup Utility Bios passwords Registering fingerprints Using the fingerprint readerUsing HP SimplePass select models only Using your registered fingerprint to log on to Windows Using Internet security softwareUsing antivirus software Using firewall softwareBacking up your software applications and information Installing software updatesSecuring your wireless network Using an optional security cable lockPage Determining the Bios version Using Setup Utility Bios and System DiagnosticsStarting Setup Utility Bios Updating the BiosDownloading a Bios update Using System Diagnostics Creating recovery media and backups Backing up, restoring, and recoveringSee Creating HP Recovery media on Creating HP Recovery mediaRestore and recovery Remove everything and reinstall Windows Using Windows Refresh for quick and easy recoveryWhat you need to know Recovering using HP Recovery ManagerChanging the computer boot order Using HP Recovery media to recoverRemoving the HP Recovery partition Input power Rating SpecificationsInput power Operating environment Electrostatic Discharge Index BiosJacks