HP CQ56-148CA, CQ56-110US, CQ56-100XX, CQ56-104CA, CQ56-112NR, CQ56-115DX, CQ56-122NR, CQ56-154CA manual

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16.Reconnect external power and external devices.

17.Turn on the computer.

50 Chapter 9 Memory modules

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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 Welcome Finding informationWelcome 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 Using a Wlan Identifying wireless and network status iconsCreating a wireless connection Turning wireless devices on and offConnecting to an existing Wlan Setting up a new WlanProtecting your Wlan Roaming to another networkUsing Bluetooth wireless devices select models only Connecting to a local area network LANPage Using the keyboard Pointing devices and keyboardFunction Action key Using the TouchPad Setting pointing device preferencesUsing the media activity controls MultimediaAudio Webcam select models only Adjusting the volumeChecking your audio functions Video VGAPower management Shutting down the computerSetting power options Using power-saving statesUsing the Power icon Using battery powerUsing power management Displaying the remaining battery charge Inserting or removing the battery Charging a battery Maximizing battery life Managing low battery levelsConserving battery power Storing a batteryDisposing of a used battery Using external AC powerReplacing the battery Testing an AC adapter Drives Handling drivesReplacing or upgrading the hard drive Removing the hard driveInstalling the hard drive Page Playing a CD Using optical drives select models onlyIdentifying the installed optical drive Removing 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 Setting passwords in the operating system Operating system passwords FunctionBackup and Recovery Performing a system recovery Backing up your information Using Setup Utility Setup Utility BiosStarting Setup Utility Changing the language of Setup UtilityExiting Setup Utility Restoring factory default settings in Setup UtilityDisplaying system information Computer is unable to start up Troubleshooting and supportTroubleshooting Computer screen is blankComputer is unusually warm Software is functioning abnormallyComputer is on but not responding An external device is not workingWireless network connection is not working Optical disc tray does not open for removal of a CDDisc does not play Computer does not detect the optical driveMovie is not visible on an external display Contacting customer support Labels ComponentRoutine care Cleaning the display Cleaning the TouchPad and keyboard Input power SpecificationsOperating environment Appendix C Specifications Electrostatic discharge Index LAN USBWlan

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