Lenovo TC A51-8424, TC A51-8425, TC A51-8428 manual User Guide Types 8424, 8425 Types 8171, 8172

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ThinkCentre™

User Guide

Types 8424, 8425, 8428

Types 8171, 8172, 8173

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Contents User Guide Types 8424, 8425 Types 8171, 8172 Page User Guide Types 8424, 8425 Types 8171, 8172 Page Contents Iv User Guide Conditions that require immediate action Important safety informationService General safety guidelinesPower cords and power adapters Plugs and outlets Extension cords and related devicesBatteries Additional safety information CD and DVD drive safetyHeat and product ventilation To connect To disconnect Modem safety information Lithium battery noticeConnexion Déconnexion Consignes de sécurité relatives au modem Laser compliance statementXii User Guide Information resources OverviewFeatures Power Input/output featuresSecurity features ExpansionIBM preinstalled software Available options Operating systems preinstalled varies by modelSpecifications Supported operating positions User Guide Installing external options Installing optionsHandling static-sensitive devices Cover keylock some models Obtaining device drivers Locating connectors on the rear of your computerOpening the cover Locating components Accessing system board components and drives Identifying parts on the system board Installing memory Installing PCI adapters What to do next Removing and replacing the batteryRemoving and replacing an optical drive Removing and replacing a diskette drive Installing security featuresIntegrated security cable Identifying security locksUser Guide To install a rope clip Password protectionRope clip Cover lockClosing the cover and connecting the cables Erasing a lost or forgotten password clearing CmosStarting the IBM Setup Utility program Using the IBM Setup UtilityViewing and changing settings Exiting from the IBM Setup Utility programUser Password Password considerationsAdministrator Password IDE Drive User PasswordSetting, changing, and deleting a password IDE Drive Master PasswordUsing Security Profile by Device Select Security Profile by DeviceSelecting a startup device Advanced settingsSelecting a temporary startup device Changing the startup device sequenceUpdating flashing Bios from a diskette Appendix A. Updating POST/BIOSUpdating flashing Bios from your operating system Recovering from a POST/BIOS update failure Cleaning an optical mouse Appendix B. Cleaning the mouseCleaning a mouse with a ball User Guide Basic AT commands Appendix C. Manual modem commandsSet Pulse dial as default Low speaker volumeSet Tone Dial as default Internal speaker on until carrier detectedExtended AT commands MNP/V.42/V.42bis/V.44 commands Fax Class 2 commands Fax Class 1 commandsVoice commands Appendix C. Manual modem commands User Guide Appendix D. Notices IBM TrademarksIndex Special characters Page Page Part Number 19R0474