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Lenovo 7391, 7397, 7392, 7398, 7396, 7390 manual Removing the cover

Models: 7390 7396 7398 7391 7392 7397

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Removing the cover

Removing the cover

Important

Read “Important safety information” on page v and “Handling static-sensitive devices” on page 16 before removing the computer cover.

To remove the computer cover:

1.Remove any media (diskettes, CDs, or tapes) from the drives, shut down your operating system, and turn off all attached devices.

2.Unplug all power cords from electrical outlets.

3.Disconnect all cables attached to the computer. This includes power cords, input/output (I/O) cables, and any other cables that are connected to the computer.

4.Remove any locking devices such as a padlock that secure the cover.

5.Remove the two screws at the rear of the computer cover and slide the cover to the rear to remove.

20User Guide

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Lenovo 7391, 7397, 7392, 7398, 7396, 7390 manual Removing the cover

Contents

User Guide Lenovo 3000 J Series Types 7390, 7391, 7392, 7396Page Lenovo 3000 J Series Fourth Edition February Copyright Lenovo Contents Index commandsAppendix B. Notices Appendix A. Manual modemImportant safety information Conditions that require immediate actionGeneral safety guidelines Service and upgradesPower cords and power adapters Static electricity preventionviiiUser Guide Plugs and outlets Voltage-selectionswitchExtension cords and related devices Heat and product ventilation External devicesBatteries xUser GuideOperating environment Do not Electrical current safety informationLithium battery notice Modem safety information Laser compliance statementCleaning and maintenance Power supply statementData safety Additional safety informationIntroduction xviUser Guide Glare and lighting Chapter 1. Arranging your workspaceComfort Air circulation Electrical outlets and cable lengthsChapter 2. Setting up your computer Connecting your computer4User Guide PHONE LINE Chapter 2. Setting up your computerPHONE LINE b.Connect the ac adapter cable to the speaker b. Connect the speakers to the computer Completing important tasks Turning on powerFinishing the software installation 8User GuideUpdating your antivirus software Installing other operating systemsUpdating your operating system Shutting down the computer10User Guide Chapter 3. Installing options FeaturesMemory System management featuresMicroprocessor Internal drivesSecurity features Input/output featuresPower Preinstalled softwareAvailable options Operating systems, preinstalled varies by modelWeight SpecificationsDimensions EnvironmentHandling static-sensitivedevices Supported operating positionsTools required Microphone connector Installing external optionsUSB connector Headphone connectorLocating connectors on the rear of your computer Description Obtaining device driversConnector Removing the cover Locating components Accessing system board components 4.In some models, you will need to remove the PCI adapter in order to access the battery Identifying parts on the system board Microprocessor fan connector Installing memory Installing PCI adapters What to do nextInstalling security features 28User GuidePadlock Password protectionChanging the battery To change the battery Replacing the cover and connecting the cables 32User Guide Chapter 4. Recovering software Creating and using the Product Recovery discPerforming backup and recovery operations Using the Rescue and Recovery workspace Creating and using rescue media To use rescue media, do one of the following Creating and using a Recovery Repair disketteTo create rescue media, do the following Recovering or installing device drivers Setting a rescue device in the startup sequence Solving recovery problems40User Guide Viewing and changing settings Chapter 5. Using the Setup UtilityStarting the Setup Utility program Using passwordsSetting, changing, and deleting a password User PasswordAdministrator Password Using Security Profile by DeviceChanging the startup device sequence Selecting a startup deviceSelecting a temporary startup device 3.Select Security Profile by Device44User Guide Advanced settingsExiting from the Setup Utility program Chapter 6. Updating system programs Using system programsUpdating flashing BIOS from a diskette 46User Guide Chapter 7. Troubleshooting and diagnostics Basic troubleshootingDiagnostic programs PC-Doctorfor DOS Creating a diagnostic CD imagePC-Doctorfor Windows Creating diagnostic diskettes Running diagnostics from the CD or diskettesOptical mouse Cleaning the mousePC-Doctorfor Windows PE Non-opticalmouse 11.Reconnect the mouse cable to the computer 54User Guide Online Books folder Chapter 8. Getting information, help, and serviceInformation resources Lenovo CareAccess Help Safety and warrantyCalling for service Help and serviceUsing the documentation and diagnostic programs Using other services Purchasing additional servicesAppendix A. Manual modem commands Basic AT commandsCommand Extended AT commands MNP/V.42/V.42bis/V.44 commands Fax Class 1 commands Fax Class 2 commandsVoice commands PTT Art. Bakom 93.0291.Z.N Attention Switzerland UserTelekom PTT SCR-BE Taximpulssperrfilter-12kHz 66User Guide 500 Park Offices Drive, Hwy Appendix B. NoticesLenovo United States, Inc Research Triangle Park, NC U.S.ATelevision output notice TrademarksIndex A Page Page Part Number: Printed in USA 1P P/N