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Lenovo U455 manual Upgrading and replacing devices

Models: U455

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Chapter 6. Upgrading and replacing devices

6If two SDRAMs are already installed in the memory slot, remove one of them to make room for the new one by pressing out on the latches on both edges of the socket at the same time. Be sure to save the old SDRAM for future use.

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a

a

a

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7Insert the notched end of the DIMM into the socket.

Press the DIMM firmly, and pivot it until it snaps into place. Make sure that it is firmly fixed in the slot and does not move easily.

8After aligning the attachment clips with their matching gaps, reinstall the compartment cover.

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Lenovo U455 manual Upgrading and replacing devices

Contents

Lenovo IdeaPad U455 First Edition December Copyright Lenovo Dear user Explanation of hard disk capacity Page Page Contents 120 Contents Appendix B. Use and careAppendix F. Features Appendix C. Lenovo limitedIii Important safety informationImportant safety information „ Read this firstImportant safety information Unpack Important safety information Working place Important safety information Correct usage procedures Vii Important safety informationViii Important safety information Service and upgradesGetting to know your computer Camera Power buttonGetting to know your computer IntegratedTouchpad FingerprintReader Adapter jack Left-side viewRight-side view Bottom view Memory Battery packCompartment Battery latch SIM card slot Select models onlyLearning the basics „ Connecting to the powerInstalling the battery pack Connecting the computer to an electrical outletPutting your computer into sleep state „ Configuring the operating system„ Turning on the computer Learning the basics„ Shutting down your computer Using AC adapter and battery „ Checking battery status„ Charging the battery „ Removing the battery pack „ Handling the battery Using the touchpad Left click buttonRight click button Rotating „ GesturesPinch zoom Two-Finger ScrollingLearning the basics Three-Finger Flick „ Numeric keypad Using the keyboard„ Function key combinations Fn + F3 Fn + EscFn + F1 Fn + F2„ Using memory cards not supplied Connecting external devices„ Connecting a universal serial bus USB device „ Inserting a memory card„ Removing a memory card Enabling Bluetooth communications on your computer „ Connecting a Bluetooth device Select models onlySwitching GPU Select models only Learning the basics Special keys and buttons Learning the basics OneKey Rescue system button Volume buttons ~System status indicators IndicatorTouchpad indicator „ Attaching a security lock not supplied Securing your computer„ Using passwords „ Using VeriFace„ Fingerprint reader Wired connection Using the InternetCable „ Software configurationUsing the Internet „ Hardware connectionWi-Fi Wireless connectionHardware connection „ Using Wi-Fi/WiMax Select models onlyEnabling wireless connection Software configuration„ Using Mobile Broadband Select models only Inserting the SIM card Removing the SIM card Using the Internet OneKey Rescue system OneKey Rescue system„ Introduction OneKey Rescue system OneKey Rescue system Frequently Asked Questions TroubleshootingWhere are the recovery discs? TroubleshootingWhat can I do if the backup process fails? Display problems TroubleshootingComputer is on Problems with GPU switchingTroubleshooting Password problem Keyboard problemsSleep or hibernation problems Mode immediately after Sound problems Troubleshooting Computer screen problemsTroubleshooting Battery problems Hard disk drive problemStartup problem Other problems Troubleshooting OneKey Rescue system problemsConnected external Replacing the battery To replace the battery, do the followingUpgrading and replacing devices Upgrading and replacing devices Handling a hard disk drive Replacing the hard disk driveUpgrading and replacing devices Upgrading and replacing devices Upgrading and replacing devices Replacing memory Upgrading and replacing devices Upgrading and replacing devices Upgrading and replacing devices Upgrading and replacing devices Appendix A. Getting help and service Getting help on the Web Appendix A. Getting help and serviceAppendix A. Getting help and service Appendix A. Getting help and service Getting help around the world „ 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„ Data safety „ Take care in setting passwords„ Other important tips Appendix B. Use and care information „ Ergonomic information Accessibility and comfort„ Questions about vision? „ What if you are traveling?„ General tips for maintenance MaintenanceAppendix B. Use and care information „ Cleaning the cover of your computer „ Cleaning your computer keyboard „ Cleaning your computer display „ What this warranty covers Appendix C. Lenovo limited warranty„ How to obtain warranty service „ What your service provider will do to correct problemsAppendix C. Lenovo limited warranty Information „ 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 addressWarranty information Customer Replaceable Unit CRU Service „ Types of warranty serviceAppendix C. Lenovo limited warranty On-site Service Courier or Depot ServiceCustomer Carry-In or Mail-In Service Product Exchange Service Appendix D. Customer replaceable units CRUs Appendix D. Customer replaceable units CRUs Appendix E. Notices Appendix E. Notices 100 „ Export classification notice101 Energy Star model informationWindows 102Wireless related information „ Wireless interoperability103 104 „ Usage environment and your health105 „ Safety information related to Mobile Broadband106 Electronic emissions notices „ Federal Communications Commission FCC Statement107 108 „ Industry Canada Class B Emission Compliance Statement„ Avis de conformité à la réglementation d’Industrie Canada „ German Class B Compliance Statement109 110 111 „ European Union Compliance Statement Class B Compliance112 „ Japan Compliance Statement for Power line Harmonics „ Korea Class B113 Weee and recycling statements „ General recycling statement114 115 EU Weee statements116 Japan recycling statements117 „ Disposing of a Lenovo Computer Components118 119 Form Factor Appendix F. Features and Specifications120 Model Name IdeaPad U455Appendix F. Features and Specifications Ports 121Others 122 Trademarks123 IndexIndex 124125 Page If your product is not working correctly Do not Return IT to the StoreNew World. New Thinking.TM