Lenovo 3120, 3122, 3128, 3126 Password considerations, Power-on password, Administrator password

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Password considerations

A password can be any combination of up to 16 (1 to 16) alphabetic and numeric characters. For security reasons, it is recommended to use a strong password that cannot be easily compromised. To set a strong password, use the following guidelines:

Note: The Setup Utility program passwords are not case sensitive.

Have at least eight characters in length

Contain at least one alphabetic character and one numeric character

Not be your name or your user name

Not be a common word or a common name

Be significantly different from your previous passwords

Power-on password

After you have set a power-on password using the Set Power-On Password option, a password prompt is displayed each time you turn on the computer. You cannot use the computer until a valid password is typed in. For more information about how to set a password, see “Setting, changing, or deleting a password” on page 62.

Administrator password

The Set Administrator Password option enables you to set an administrator password, which deters unauthorized users from changing configuration settings. If you are responsible for maintaining the settings of several computers, you might want to set an administrator password. For more information about how to set a password, see “Setting, changing, or deleting a password” on page 62.

After you have set an administrator password, a password prompt is displayed each time you try to access the Setup Utility program. You cannot access the Setup Utility program until a valid password is typed in.

If you have set both a power-on password and an administrator password, you can type either password to use your computer. However, to change any configuration settings, you must use your administrator password.

Setting, changing, or deleting a password

This section provides instructions on how to set, change, or delete a password.

To set, change, or delete a password, do the following:

1.Start the Setup Utility program. See “Starting the Setup Utility program” on page 61.

2.From the Setup Utility program main menu, select Security Set Power-On Password or Set Administrator Password.

3.Follow the instructions on the screen to set, change, or delete a password.

Note: A password can be any combination of up to 16 (1 to 16) alphabetic and numeric characters. For more information, see “Password considerations” on page 62.

Enabling or disabling a device

This section provides instructions on how to enable or disable user access to a device.

62ThinkCentre User Guide

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Contents ThinkCentre User Guide Second Edition December Copyright Lenovo Contents Index Important safety information Iv ThinkCentre User Guide Features Product overviewConnectivity Preinstalled operating system Software provided with your Windows operating system SpecificationsSoftware overview Lenovo ThinkVantage Tools Lenovo Solution Center LocationsLocating connectors and parts on the rear of your computer Front connector, control, and indicator locationsConnector Description If you use speech-recognition software Locating components Locating parts on the system boardLocating internal drives System board part locationsDrive bay locations Handling static-sensitive devices Installing or replacing hardwareInstalling or replacing hardware Installing external options Opening the computer coverRemoving and reinstalling the front bezel Removing the front bezelAccessing the system board components and drives What to do nextInstalling or replacing a memory module Removing a memory moduleInstalling or replacing a PCI card Opening the retaining clipsRemoving a PCI card Installing the PCI card Installing or replacing the card reader Installing the card readerInstalling the card reader Installing the screw that secures the card reader Replacing the card reader Installing the card reader Replacing the battery Removing the old battery Replacing the hard disk driveRemoving the hard disk drive Removing the hard disk drive from the bracket Installing the hard disk drive Replacing the optical drivePivoting the optical drive bay Removing the old optical drive Replacing the heat sink and fan assembly Installing a new optical driveScrews that secure the heat sink and fan assembly Removing the heat sink fan duct Replacing the power supply assembly Installing the heat sink fan ductInstalling or replacing hardware Removing the heat sink fan duct Power connectors on the system board Installing the power supply assembly Replacing the microprocessor Accessing the microprocessor Installing or replacing hardware Replacing the internal speaker Removing the front bezel Removing the cover presence switch Removing the internal speaker Installing the new internal speaker Replacing the front audio and USB assembly Reinstalling the cover presence switchRemoving the front audio and USB assembly Replacing the keyboard Replacing the mouseCompleting the parts replacement Mouse connectorsIntegrated cable lock Obtaining device drivers Basic security featuresPassword protection Erasing a lost or forgotten password clearing Cmos Creating recovery media Recovery informationCreating and using recovery media Performing a backup operation Using recovery mediaPerforming backup and recovery operations Performing a recovery operation Using the Rescue and Recovery workspaceCreating a rescue medium Creating and using a rescue mediumUsing a rescue medium Installing or reinstalling device drivers Solving recovery problemsThinkCentre User Guide Using the Setup Utility program Starting the Setup Utility programViewing or changing settings Using passwordsPassword considerations Power-on passwordAdministrator password Setting, changing, or deleting a passwordViewing or changing the startup device sequence Selecting a startup deviceSelecting a temporary startup device Exiting the Setup Utility program Updating system programs Using system programsUpdating flashing the Bios from a disc Updating flashing the Bios from your operating system Recovering from a Post and Bios update failureUpdating system programs ThinkCentre User Guide Troubleshooting and diagnostic programs Basic troubleshootingDiagnostic programs Lenovo Solution CenterLenovo ThinkVantage Toolbox PC-Doctor for DOSNon-optical mouse Cleaning the mouseOptical mouse Troubleshooting and diagnostic programs ThinkCentre User Guide Getting information, help, and service Information resourcesOnline Books folder Lenovo ThinkVantage ToolsAccess Help Safety and warrantyLenovo Welcome Lenovo Support Web siteCalling for service Help and serviceUsing the documentation and diagnostic programs Using other services Purchasing additional servicesAppendix A. Notices Television output notice Trademarks ThinkCentre User Guide Index CRUInstalling options Memory module PCI card Security features Set Power-On Password ThinkCentre User Guide Page 0A94223