HP CQ56-124CA, CQ56-110US Software is functioning abnormally, Computer is on but not responding

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Software is functioning abnormally

If the software is unresponsive or responds abnormally, restart the computer by clicking Computer > Shutdown > Restart. If you cannot restart the computer using this procedure, refer to the next section, The computer is on but not responding on page 59.

The computer is on but not responding

If the computer is turned on but is not responding to software or keyboard commands, try the following emergency shutdown procedures, in the sequence provided, until shutdown occurs:

CAUTION: Emergency shutdown procedures result in the loss of unsaved information.

●Press ctrl+alt+delete, and then click Shut Down.

●Press and hold the power button for at least 5 seconds.

●Disconnect the computer from external power and remove the battery.

The computer is unusually warm

It is normal for the computer to feel warm to the touch while it is in use. But if the computer feels unusually warm, it may be overheating because a vent is blocked.

If you suspect that the computer is overheating, allow the computer to cool to room temperature. Then be sure to keep all vents free from obstructions while you are using the computer.

WARNING! To reduce the possibility of heat-related injuries or of overheating the computer, do not place the computer directly on your lap or obstruct the computer air vents. Use the computer only on a hard, flat surface. Do not allow another hard surface, such as an adjoining optional printer, or a soft surface, such as pillows or rugs or clothing, to block airflow. Also, do not allow the AC adapter to contact the skin or a soft surface, such as pillows or rugs or clothing, during operation. The computer and the AC adapter comply with the user-accessible surface temperature limits defined by the International Standard for Safety of Information Technology Equipment (IEC 60950).

NOTE: The fan in the computer starts up automatically to cool internal components and prevent overheating. It is normal for the internal fan to cycle on and off during operation.

An external device is not working

Follow these suggestions if an external device does not function as expected:

●Turn on the device according to the manufacturer's instructions.

●Be sure that all device connections are secure.

●Be sure that the device is receiving electrical power.

●Be sure that the device, especially if it is older, is compatible with the operating system.

●Be sure that the correct drivers are installed and updated.

Troubleshooting 59

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Contents HP Notebook User Guide Product notice Safety warning notice Iv Safety warning notice Table of contents Multimedia Memory modules Security Appendix B Routine care Finding information WelcomeWelcome Getting to know your computer TouchPad TopLights Top Button and speakers Keys Right side Left side Display Wireless antennas Bottom Additional hardware Networking Using an Internet service provider ISP Turning wireless devices on and off Identifying wireless and network status iconsCreating a wireless connection Using a WlanSetting up a new Wlan Connecting to an existing WlanRoaming to another network Protecting your WlanConnecting to a local area network LAN Using Bluetooth wireless devices select models onlyPage Pointing devices and keyboard Using the keyboardFunction Action key Setting pointing device preferences Using the TouchPadMultimedia Using the media activity controlsAudio Webcam select models only Adjusting the volumeChecking your audio functions VGA VideoShutting down the computer Power managementUsing power-saving states Setting power optionsUsing the Power icon Using battery powerUsing power management Displaying the remaining battery charge Inserting or removing the battery Charging a battery Managing low battery levels Maximizing battery lifeStoring a battery Conserving battery powerDisposing of a used battery Using external AC powerReplacing the battery Testing an AC adapter Handling drives DrivesRemoving the hard drive Replacing or upgrading the hard driveInstalling the hard drive Page Removing a CD Using optical drives select models onlyIdentifying the installed optical drive Playing a CDPage Connecting a USB device Using a USB deviceExternal devices Using a USB device Using optional external drives Using optional external devicesRemoving a USB device Memory modules Page Page Page Security Using passwordsProtecting the computer Operating system passwords Function Setting passwords in the operating systemBackup and Recovery Performing a system recovery Backing up your information Changing the language of Setup Utility Setup Utility BiosStarting Setup Utility Using Setup UtilityExiting Setup Utility Restoring factory default settings in Setup UtilityDisplaying system information Computer screen is blank Troubleshooting and supportTroubleshooting Computer is unable to start upAn external device is not working Software is functioning abnormallyComputer is on but not responding Computer is unusually warmOptical disc tray does not open for removal of a CD Wireless network connection is not workingDisc does not play Computer does not detect the optical driveMovie is not visible on an external display Contacting customer support Component LabelsRoutine care Cleaning the display Cleaning the TouchPad and keyboard Input power SpecificationsOperating environment Appendix C Specifications Electrostatic discharge LAN USB IndexWlan
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