Lenovo 8141, 8426, 8421, 8145, 8142, 8420 Padlock loop, Password protection, Changing the battery

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Padlock loop

Your computer is equipped with a padlock loop that locks the cover to your computer when a padlock is installed.

Make sure that the padlock loop does not interfere with the computer cables.

Password protection

To deter unauthorized use of your computer, you can use the Setup Utility program to set a password. See “Using passwords” on page 25.

What to do next:

vTo work with another option, go to the appropriate section.

vTo complete the installation, go to “Replacing the cover and connecting the cables” on page 23.

Changing the battery

Your computer has a special type of memory that maintains the date, time, and settings for built-in features, such as parallel-port assignments (configuration). A battery keeps this information active when you turn off the computer.

The battery normally requires no charging or maintenance throughout its life; however, no battery lasts forever. If the battery fails, the date, time, and configuration information (including passwords) are lost. An error message is displayed when you turn on the computer.

Chapter 1. Installing options 21

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Contents User Guide Types 8095, 8096, 8141 Types 8145, 8420, 8421 Page User Guide Types 8095, 8096, 8141 Types 8145, 8420, 8421 Page Contents Iv User Guide Conditions that require immediate action Important safety informationService General safety guidelinesExtension cords and related devices Power cords and power adaptersBatteries Plugs and outletsHeat and product ventilation CD and DVD drive safetyLithium battery notice Additional safety informationTo connect To disconnect Laser compliance statement Modem safety informationPower supply statement Information resources OverviewXiv User Guide Features Installing optionsMemory Operating systems, preinstalled varies by model type Specifications Tools required Available optionsHandling static-sensitive devices Installing external options Locating the connectors on the front of your computer Locating the connectors on the rear of your computer Obtaining device drivers Connector DescriptionRemoving the cover Identifying parts on the system board Locating componentsInstalling memory Installing options What to do next Installing adaptersWhat to do next Drive specifications Installing internal drivesInstalling a drive User Guide Connecting the first optical drive Connecting a serial ATA hard disk drive Installing security featuresChanging the battery Password protectionPadlock loop User Guide Replacing the cover and connecting the cables Erasing a lost or forgotten password clearing CmosUser Guide Starting the Setup Utility program Using the Setup Utility programViewing and changing settings Using passwordsAdministrator password User passwordIDE Drive User Password IDE Drive Master PasswordUsing Security Profile by Device Setting, changing, and deleting a passwordSelecting a startup device Selecting a temporary startup device Exiting from the Setup Utility programChanging the startup sequence Updating flashing Bios from your operating system Updating flashing Bios from a disketteAppendix A. Updating system programs System programsClick Continue Click Downloads and drivers Recovering from a POST/BIOS update failureCleaning 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 Trademarks Television output noticeIndex Page Page Part Number 19R0462