Lenovo TC S51-8171, TC A51-8425, TC A51-8424 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 informationGeneral safety guidelines ServicePower cords and power adapters Extension cords and related devices Plugs and outletsBatteries CD and DVD drive safety Additional safety informationHeat and product ventilation To connect To disconnect Lithium battery notice Modem safety informationConnexion Déconnexion Consignes de sécurité relatives au modem Laser compliance statementXii User Guide Information resources OverviewFeatures Expansion Input/output featuresPower Security featuresIBM preinstalled software Available options Operating systems preinstalled varies by modelSpecifications Supported operating positions User Guide Installing options Installing external 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 Cover lock Password protectionTo install a rope clip Rope clipClosing the cover and connecting the cables Erasing a lost or forgotten password clearing CmosExiting from the IBM Setup Utility program Using the IBM Setup UtilityStarting the IBM Setup Utility program Viewing and changing settingsIDE Drive User Password Password considerationsUser Password Administrator PasswordSelect Security Profile by Device IDE Drive Master PasswordSetting, changing, and deleting a password Using Security Profile by DeviceChanging the startup device sequence Advanced settingsSelecting a startup device Selecting a temporary startup deviceAppendix A. Updating POST/BIOS Updating flashing Bios from a disketteUpdating flashing Bios from your operating system Recovering from a POST/BIOS update failure Appendix B. Cleaning the mouse Cleaning an optical mouseCleaning a mouse with a ball User Guide Basic AT commands Appendix C. Manual modem commandsInternal speaker on until carrier detected Low speaker volumeSet Pulse dial as default Set Tone Dial as defaultExtended 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