Lenovo B560 manual Troubleshooting Other problems, Your computer does not respond

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Chapter 5. Troubleshooting

Other problems

Your computer does not respond.

•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.

The computer does not start from a device you want.

•See the Boot menu of the BIOS setup utility. Make sure that the Boot priority order 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 priority order 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.

The connected external device does not work.

•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 B560 Regulatory Notice Contents Page Getting to know your computer Top viewIndicators Built-in microphone Select models only Wireless moduleAntennas Select Models only Computer display Power button Getting to know your computerUSB port Right-side view Headphone jackMemory card slot Battery pack SpeakersGetting to know your computer Learning the basics „ Conncting to the power„ Configuring the operating system „ Reading the manuals„ Shutting down your computer Learning the basics„ Removing the battery pack „ Checking battery status„ Charging the battery „ Handling the batteryLeft click button Right click button„ Numeric keypad „ Function key combinationsLearning the basics „ Connecting a universal serial bus USB device Connecting external devices„ Using memory cards not supplied Inserting a memory card„ Connecting a Bluetooth device Select models only Enabling Bluetooth communications on your computerSpecial keys and buttons „ OneKey Rescue system buttonC d G h „ Attaching a security lock not supplied „ Using passwordsSecuring your computer „ Fingerprint reader Select models only„ Hardware connection Connecting to the Internet„ Software configuration CableEnabling wireless connection „ Using Wi-Fi/WiMAX Select models onlyConnecting to the Internet Software configuration„ Using Mobile Broadband Select models only Connecting to the Internet Inserting the SIM card Connecting to the Internet Removing the SIM card OneKey Rescue system OneKey Rescue system„ Introduction Troubleshooting Frequently asked questionsTroubleshooting When do I need to restore the system to the factory status?Display problems Password problemComputer screen problems Troubleshooting Sleep or hibernation problemsSound problems Startup problem Troubleshooting Battery problemsHard disk drive problem OneKey Rescue system problemsTroubleshooting Other problems Your computer does not respondPage Appendix A. CRU instructions Replacing the hard disk driveHandling a hard disk drive Appendix A. CRU instructions Appendix A. CRU instructions Appendix A. CRU instructions Sdram Page Appendix A. CRU instructions Removing the optical drive „ How to obtain warranty service Appendix B. Lenovo limited warranty„ What this warranty covers „ What your service provider will do to correct problemsAppendix B. Lenovo limited warranty „ Replacement of a product or part„ Your additional responsibilities „ Use of personal information „ What this warranty does not cover„ Limitation of liability „ Other rights „ Dispute resolution„ European Economic Area EEA Warranty information „ Types of warranty service Appendix B. Lenovo limited warranty Appendix C. Product specific Notices Energy star informationAppendix C. Product specific Notices WindowsElectronic emissions notices „ Federal Communications Commission FCC Statement„ Avis de conformité à la réglementation d’Industrie Canada „ Industry Canada Class B Emission Compliance Statement„ German Class B Compliance Statement „ European Union Compliance Statement Class B Compliance System Appendix D. SpecificationsModel Name B560 Machine Type 20068 Form Factor PortsTrademarks Problems IndexDo not Return IT to the Store If your product is not working correctlyNew World. New Thinking.TM