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Lenovo B450 manual Do not connect or disconnect any external device

Models: B450

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• Do not connect or disconnect any external device

Chapter 5. Troubleshooting

The computer does not start from the desired device.

•See the Boot menu of BIOS Setup Utility. Make sure that Boot priority order in 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 BIOS Setup Utility, make sure that the device is included in the Boot priority order list.

The connected external	• Do not connect or disconnect any external device
device does not work.	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.

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Lenovo B450 manual Do not connect or disconnect any external device

Contents

User Guide Lenovo B450First Edition July Copyright Lenovo Dear user Respective UsersExplanation of hard disk capacity Page Page Contents Notice on deleting data from Important safety information Important safety information„Read this first Unpack Important safety informationDanger Danger Important safety informationWorking place DangerDanger Important safety informationOn using DangerDo NOT wrap the power cord around the power adapter or other objects Service and upgrades Important safety informationviii b c d Chapter 1. Getting to know your computerTop view Chapter 1. Getting to know your computer jack Left-sideviewChapter 1. Getting to know your computer a b c d e fReads/Burns optical disks Right-sideviewOptical drive USB portsChapter 1. Getting to know your computer wireless deviceswitch wireless devices on your computerBottom view Fan louvers Battery packBattery latch - spring loaded Chapter 1. Getting to know your computer„Connect to the power Chapter 2. Learning the basics„Read the manuals Putting your computer into sleep state „Configure the operating system„Turn on the computer Chapter 2. Learning the basicsChapter 2. Learning the basics „Shutting down your computerStart menu „Checking battery status Using AC adapter and battery„Charging the battery „Removing the battery pack „Handling the battery Click button Using the touchpadChapter 2. Learning the basics Touchpad„Numeric keypad Using the keyboard„Function key combinations Enter sleep mode Chapter 2. Learning the basics Special keys and buttonsOneKey Rescue System button Chapter 2. Learning the basics System status indicatorsHard disk drive indicator Wireless communication indicator„Attaching a security lock not supplied Securing your computerscreen in BIOS setup utility „Using passwords„Using memory cards not supplied Connecting external devices„Inserting a memory card „Connecting a universal serial bus USB device„Removing a memory card Chapter 3. Using the Internet Wired connectionCable „Software configurationChapter 3. Using the Internet „Hardware connectionWi-Fi Wireless connectionSoftware configuration „Using Wi-Fispecific models onlyChapter 3. Using the Internet Enabling wireless connectionChapter 4. OneKey Rescue System OneKey Rescue System„Introduction Chapter 4. OneKey Rescue System Shut down your computer Frequently Asked Questions Chapter 5. TroubleshootingHow can I install the device drivers? Chapter 5. TroubleshootingWhere are the recovery discs? Where can I find warranty information?What can I do if the backup process fails? Chapter 5. Troubleshooting TroubleshootingDisplay problems A Password problem Chapter 5. TroubleshootingFn + Insert Chapter 5. TroubleshootingKeyboard problems Sleep or hibernation problemsIf the computer does not return from sleep mode, it may have entered hibernation mode automatically because the battery is depleted. Check the power indicator Computer screen problems Chapter 5. TroubleshootingA hard disk drive problem Chapter 5. TroubleshootingSound problems Battery problemsOther problems Chapter 5. TroubleshootingA startup problem OneKey Rescue System problemsDo not connect or disconnect any external device Chapter 6. Upgrading and replacing devices Replacing the battery„To replace the battery Chapter 6. Upgrading and replacing devices Chapter 6. Upgrading and replacing devices Replacing the hard disk driveHandling a hard disk drive To replace the hard disk drive, do the following 5 Pull the tab in the direction shown by arrow AReinstall the screws BReinstall the battery pack 0Reinstall the compartment coverChapter 6. Upgrading and replacing devices Replacing memory Chapter 6. Upgrading and replacing devices 6Press outwards on the latches on both edges of the socket at the same time, remove the SO-DIMM.Be sure to save the old SO-DIMMfor future use Page Gently pull the optical drive out Removing the optical driveTo remove the optical drive, do the following Remove the screw shown in the figureSetup Poster Appendix A. Getting help and service Calling the customer support center Getting help on the WebThe following items are not covered Machine Type and Model Getting help around the world Lenovo warranty service telephone numbers„Be careful about where and how you work Appendix B. Use and care informationCaring for your computer Appendix B. Use and care information „Notice of static-electricity„Carry your computer properly „Be gentle with your computer„Handle storage media and drives properly „For outdoor use„Take care in setting passwords „Data safety„Other important tips Memory module „Ergonomic information Accessibility and comfort„Questions about vision? „What if you are traveling?„General tips for maintenance MaintenanceUpdate device drivers and BIOS when needed „Cleaning the cover of your computer „Cleaning your computer keyboard „Cleaning your computer display „What this warranty covers Appendix C. Lenovo limited warrantyAppendix C. Lenovo limited warranty „How to obtain warranty serviceinformation.” „Replacement of a product or part „Use of personal information „Your additional responsibilities„What this warranty does not cover „Limitation of liability „Dispute resolution „European Economic Area EEA „Other rightsLENOVO TECHNOLOGY B.V. TURKIYE ISTANBUL SUBESI „Lenovo Turkey addressPosta Kodu Tel Fax Warranty information Appendix C. Lenovo limited warranty „Types of warranty service1 Customer Replaceable Unit “CRU” Service 4Customer Carry-Inor Mail-InService Appendix C. Lenovo limited warranty2On-siteService 3Courier or Depot Service5Product Exchange Service Appendix C. Lenovo limited warrantyAppendix D. Customer replaceable units CRUs Appendix D. Customer replaceable units CRUs 1009 Think Place - Building One Morrisville, NC Appendix E. NoticesNotices Lenovo United States, IncAppendix E. Notices „Export classification notice „Wireless interoperability Wireless related information„Usage environment and your health „Safety information related to Mobile Broadband 3Use of mobile devices on board aircraft is explicitly prohibited by many airlines companies, especially during take-offand landing. The built-inMobile Broadband module on your computer is a low-powerradio transceiver. When it is turned on, it intermittently receives and transmits radio frequency RF energy which could cause interference with the operation of the airplane communication or navigation system. Refer to rules or regulations of your airline company for Mobile Broadband use. Never enable Mobile Broadband feature on your computer unless you are explicitly permitted to do so „Federal Communications Commission FCC Statement Electronic emissions noticesResponsible party „German Class B Compliance Statement Deutschland Page „Japanese VCCI Class B Statement „Lenovo Product Service InformationAppendix E. Notices „Korea Class B „General recycling statement Turkish statement of complianceTürkiye EEE Yönetmeliğine Uygunluk Beyanı WEEE and recycling statementsEU WEEE statements Japan recycling statements „Disposing of a Lenovo Computer Components Notice for users in the U.S.A Notice on deleting data from your hard diskFormat your hard disk, using the software for initializing it System Appendix F. Features and SpecificationsModel Name Lenovo B450 Form FactorRJ-45port Appendix F. Features and SpecificationsI/O Ports USB 2.0 x 4 portsTrademarks Index Index Interoperability Warranty informationLENOVO If your product is not working correctlyDO NOT RETURN IT TO THE STORE New World. New Thinking.TM