Lenovo TC S51-8173, TC A51-8425 Password considerations, User Password, Administrator Password

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You do not have to set any passwords to use your computer. However, if you decide to set any passwords, read the following sections.

Password considerations

If you are setting any of the various types of passwords on your computer, you should read and understand the following information:

vIf you type an incorrect password, you will see an error message. If you type an incorrect password three consecutive times, you must turn the computer off and start again.

vIf you set both a User Password and an IDE Drive User Password to the same string, you will be prompted for the password only once when you turn on your computer.

vDo not move an IDE hard disk drive to another computer if an IDE Drive User Password has been set unless that computer also supports the IDE Drive User password.

vIf your computer is connected to a local area network (LAN), Wake on LAN will not work unless both a User Password and an IDE Drive User Password are set using the same password.

User Password

When a User Password is set, the user is prompted to type a valid password each time the computer is turned on. The computer cannot be used until a valid password is typed from the keyboard.

Administrator Password

Setting an Administrator Password deters unauthorized persons from changing configuration settings. If you are responsible for maintaining the settings of several computers, you might want to set an Administrator Password.

After you set an Administrator Password, a password prompt is displayed each time you try to access the IBM Setup Utility program.

If both the user and administrator passwords are set, you can type either password. However, to change any configuration settings, you must use your administrator password.

IDE Drive User Password

The IDE Drive User Password is used to protect the data on the IDE hard disk drive(s). When this password is set, you are prompted to type a valid password before any hard disk drive can be used. This prompt is displayed each time you turn on your computer. If your computer has multiple hard disk drives, they all must use the same password.

Attention

If an IDE Drive User Password is set but no IDE Drive Master Password is set, there is no recovery in the event that the IDE Drive User Password is lost or forgotten. The hard disk drive must be replaced. See “IDE Drive Master Password” on page 27.

26User Guide

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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 Important safety information Conditions that require immediate actionService 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 Laser compliance statement Consignes de sécurité relatives au modemXii User Guide Overview Information resourcesFeatures Input/output features PowerSecurity features ExpansionIBM preinstalled software Operating systems preinstalled varies by model Available optionsSpecifications Supported operating positions User Guide Installing external options Installing optionsHandling static-sensitive devices Cover keylock some models Locating connectors on the rear of your computer Obtaining device driversOpening the cover Locating components Accessing system board components and drives Identifying parts on the system board Installing memory Installing PCI adapters Removing and replacing the battery What to do nextRemoving and replacing an optical drive Installing security features Removing and replacing a diskette driveIdentifying security locks Integrated security cableUser Guide Password protection To install a rope clipRope clip Cover lockErasing a lost or forgotten password clearing Cmos Closing the cover and connecting the cablesUsing the IBM Setup Utility Starting the IBM Setup Utility programViewing and changing settings Exiting from the IBM Setup Utility programPassword considerations User PasswordAdministrator Password IDE Drive User PasswordIDE Drive Master Password Setting, changing, and deleting a passwordUsing Security Profile by Device Select Security Profile by DeviceAdvanced settings Selecting a startup deviceSelecting 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 Appendix C. Manual modem commands Basic AT commandsLow speaker volume Set Pulse dial as defaultSet Tone Dial as default Internal speaker on until carrier detectedExtended AT commands MNP/V.42/V.42bis/V.44 commands Fax Class 1 commands Fax Class 2 commandsVoice commands Appendix C. Manual modem commands User Guide Appendix D. Notices Trademarks IBMIndex Special characters Page Page Part Number 19R0474
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