Appendix D. Customer replaceable units CRUs | Lenovo U455 instruction

Appendix D. Customer replaceable units (CRUs)

Your computer contains the following types of internal CRUs:

•Internal CRUs (located behind an access panel): These CRUs are isolated parts within the computer that are concealed by an access panel that is typically secured by either one or two screws. Once the access panel is removed, only the specific CRU is visible. Examples of these types of CRUs include memory modules and hard disk drives.

•Internal CRUs (located within the product): These CRUs are accessible only by opening the computer’s outer case. Examples of these CRUs include PCI Express Mini Cards and the integrated keyboard.

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Lenovo U455 manual Appendix D. Customer replaceable units CRUs

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 limited Iii Important safety informationImportant safety information „ Read this first Important safety information Unpack Important safety information Working place Important safety information Correct usage procedures Vii Important safety information Viii Important safety information Service and upgrades Getting to know your computer Camera Power buttonGetting to know your computer Integrated Touchpad FingerprintReader Adapter jack Left-side view Right-side view Bottom view Memory Battery packCompartment Battery latch SIM card slot Select models only Learning the basics „ Connecting to the powerInstalling the battery pack Connecting the computer to an electrical outlet Putting 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 Scrolling Learning 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 only Switching 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 Internet Cable „ Software configurationUsing the Internet „ Hardware connection Wi-Fi Wireless connection Hardware 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 Troubleshooting Where are the recovery discs? Troubleshooting What can I do if the backup process fails? Display problems Troubleshooting Computer is on Problems with GPU switching Troubleshooting Password problem Keyboard problemsSleep or hibernation problems Mode immediately after Sound problems Troubleshooting Computer screen problems Troubleshooting Battery problems Hard disk drive problemStartup problem Other problems Troubleshooting OneKey Rescue system problems Connected 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 drive Upgrading 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 service Appendix 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 Maintenance Appendix 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 rights Lenovo Technology B.V. Turkiye Istanbul Subesi „ Lenovo Turkey address Warranty information Customer Replaceable Unit CRU Service „ Types of warranty service Appendix 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 notice 101 Energy Star model information Windows 102 Wireless related information „ Wireless interoperability103 104 „ Usage environment and your health 105 „ Safety information related to Mobile Broadband 106 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 Compliance 112 „ Japan Compliance Statement for Power line Harmonics „ Korea Class B113 Weee and recycling statements „ General recycling statement114 115 EU Weee statements 116 Japan recycling statements 117 „ Disposing of a Lenovo Computer Components 118 119 Form Factor Appendix F. Features and Specifications120 Model Name IdeaPad U455 Appendix F. Features and Specifications Ports 121Others 122 Trademarks 123 Index Index 124 125 Page If your product is not working correctly Do not Return IT to the Store New World. New Thinking.TM