Lenovo Y480, Y580 manual Troubleshooting Other problems

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Chapter 5. Troubleshooting

Other problems

Your computer does not respond.

The computer does not start from a device you want.

The connected external device does not work.

•To turn off your computer, press and hold the power button for 4 seconds or more. If the computer still does not respond, remove the AC adapter and the battery.

•Your computer might lock when it enters sleep mode during a communication operation. Disable the sleep timer when you are working on the network.

•See the Boot menu of the BIOS setup utility. Make sure that the Boot Device Priority in the BIOS setup utility is set so that the computer starts from the device you want.

•Also make sure that the device from which the computer starts is enabled. In the Boot menu in the BIOS setup utility, make sure that the device is included in the Boot Device Priority list.

•Press F12 when the Lenovo logo appears on the screen while the computer is starting up to select the device you want the computer starts from.

•Do not connect or disconnect any external device cables other than USB while the computer power is on; otherwise, you might damage your computer.

•When using a high power consumption external devices such as an external USB optical disk drive, use external device power adapter. Otherwise, the device may not be recognized, or system shut down may result.

For more technical support, please visit consumer product website http://consumersupport.lenovo.com.

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Contents Lenovo IdeaPad Y480/Y580 Regulatory Notice First Edition February Copyright Lenovo Contents Page „ Y480 Getting to know your computer„ Y580 Power buttonGetting to know your computer Computer displayGetting to know your computer OneKey Rescue Button Volume buttonSystem button OneKey TheaterKensington slot „ Y480 „ Y580 AC power adapterTV-in jack On select models Optical driveSystem status Bottom view Battery pack „ Configuring the operating system „ Connecting to the powerLearning the basics „ Reading the manualsLearning the basics „ Smart ShutdownPutting your computer into sleep state Shutting down your computer„ Checking battery status Using AC adapter and battery„ Charging the battery „ Removing the battery packTouchpad button Using the touchpadUsing Lenovo Intelligent Touchpad Y480 „ Numeric keypadY580 „ Function key combinations Learning the basics Inserting a memory card „ Using memory cards not suppliedRemoving a memory card „ Connecting USB devices Enabling Bluetooth communications on your computer „ Connecting a Bluetooth device„ OneKey Rescue system button a Special keys and buttons„ OneKey Theater button b „ Volume button cSystem status indicators „ Attaching a security lock not supplied „ Software configuration Connecting to the Internet„ Hardware connection CableConnecting to the Internet „ Using Wi-Fi/WiMAXEnabling wireless connection Software configurationOneKey Rescue system OneKey Rescue system„ Introduction OneKey Rescue system „ Creating a recovery discsFrequently asked questions TroubleshootingWhen do I need to restore the system to the factory status? TroubleshootingPassword problem Display problemsKeyboard problems Computer screen problems Troubleshooting Sleep or hibernation problemsSound problems Hard disk drive problem Troubleshooting Battery problemsStartup problem OneKey Rescue system problemsTroubleshooting Other problems Appendix. CRU instructions Replacing the batteryAppendix. CRU instructions Replacing the hard disk driveHandling a hard disk drive Appendix. CRU instructions Appendix. CRU instructions Sdram Appendix. CRU instructions Appendix. CRU instructions Removing the optical drive Trademarks Page New World. New Thinking.TM