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Lenovo 9644, 9638, 9643, 9645, 9640, TC A55-9636 manual Opening the cover

Models: TC A55-9636 9640 9645 9644 9643 9638

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Opening the cover

Opening the cover

Important

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

To open 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 cable lock that secure the cover.

5.Press the buttons on the sides of the computer and pivot the computer cover upward to open the computer as shown.

20User Guide

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Lenovo 9644, 9638, 9643, 9645, 9640, TC A55-9636 manual Opening the cover

Contents

User Guide Types 9300, 9301, 9636, 9638, Types 9641, 9642, 9643, 9644,Page User Guide Types 9300, 9301, 9636, 9638, Types 9641, 9642, 9643, 9644,Fourth Edition April Copyright Lenovo 2005, Contents Appendix A. Manual modem Important safety information Conditions that require immediate actionGeneral safety guidelines Service and upgradesStatic electricity prevention viiiUser Guide Power cords and power adaptersVoltage-selectionswitch External devices Extension cords and related devicesPlugs and outlets BatteriesHeat and product ventilation xUser GuideElectrical current safety information Operating environmentDo not Lithium battery noticeModem safety information Power supply statement Laser compliance statementAdditional safety information Data safetyCleaning and maintenance xivUser GuideIntroduction 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 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 featuresInput/output features Internal drivesPreinstalled software PowerSecurity features Operating systems, preinstalled varies by modelAvailable options Weight SpecificationsDimensions EnvironmentHandling static-sensitivedevices Supported operating positionsTools required Installing external options Locating connectors on the rear of your computer Description Obtaining device driversConnector Opening the cover Locating components Accessing system board components and drives Identifying parts on the system board Installing memory Installing PCI adapters What to do nextInstalling internal drives Drive specifications Installing a drive in bay Connecting a serial ATA drive Installing a diskette drive in bay 30User Guide4.Lower the drive bay assembly Security features 32User GuideIntegrated cable lock Password protectionChanging the battery To change the battery Closing the cover and connecting the cables 36User 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 NotesTo 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 problems44User 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 Device48User Guide Advanced settingsExiting from the Setup Utility program Chapter 6. Updating system programs Using system programsUpdating flashing BIOS from a diskette or CD-ROM b.Click Continue c.Click Downloads and drivers Updating flashing BIOS from your operating systemRecovering from a POST/BIOS update failure Chapter 6. Updating system programs 52User 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 60User Guide Online Books folder Chapter 8. Getting information, help, and serviceInformation resources ThinkVantage Productivity CenterHelp and service Access HelpSafety and Warranty Using the documentation and diagnostic programs Calling for serviceUsing 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 72User 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: 42Y4610 Printed in USA 1P P/N: 42Y4610