Lenovo 9640 Supported operating positions, Tools required, Handling static-sensitive devices

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Supported operating positions

To provide proper air flow to internal components, you must position your computer in one of the positions as illustrated below.

Tools required

To install some options in your computer, you might need a flat-blade or Phillips screwdriver. Additional tools might be needed for certain options. See the instructions that come with the option.

Handling static-sensitive devices

Static electricity, although harmless to you, can seriously damage computer components and options.

When you add an option, do not open the static-protective package containing the option until you are instructed to do so.

When you handle options and other computer components, take these precautions to avoid static electricity damage:

vLimit your movement. Movement can cause static electricity to build up around you.

vAlways handle components carefully. Handle adapters and memory modules by the edges. Never touch any exposed circuitry.

vPrevent others from touching components.

vWhen you install a new option, touch the static-protective package containing the option to a metal expansion-slot cover or other unpainted metal surface on the computer for at least two seconds. This reduces static electricity in the package and your body.

16User Guide

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Contents Page Page Page Page Contents Appendix A. Manual modem Important safety information Conditions that require immediate actionGeneral safety guidelines Service and upgradesStatic electricity prevention Power cords and power adapters Voltage-selection switchExternal devices Extension cords and related devicesPlugs and outlets BatteriesHeat and product ventilation Electrical current safety information Operating environmentModem safety information Lithium battery noticeTo connect To disconnect Power supply statement Laser compliance statementCleaning and maintenance Data safetyAdditional safety information Introduction Xvi User Guide Comfort Arranging your workspaceGlare and lighting Air circulation Electrical outlets and cable lengthsSetting up your computer Connecting your computerUser Guide Setting up your computer User Guide 1394 Finishing the software installation Turning on powerCompleting important tasks Updating your antivirus software Installing other operating systemsUpdating your operating system Shutting down the computerUser Guide Installing options FeaturesMemory Expansion Available options Weight SpecificationsDimensions EnvironmentTools required Supported operating positionsHandling static-sensitive devices Installing external options Locating connectors on the rear of your computer Connector Description Obtaining device driversOpening the cover Locating components Accessing system board components and drives Bios WP Identifying parts on the system boardInstalling 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 Installing options Security features Integrated cable lock Password protection Changing the batteryErasing a lost or forgotten password clearing Cmos Closing the cover and connecting the cables User Guide Recovering software Creating and using the Product Recovery discPerforming backup and recovery operations Using the Rescue and Recovery workspace Creating and using rescue media Creating and using a Recovery Repair diskette To create rescue media, do the followingRecovering or installing device drivers Setting a rescue device in the startup sequence Solving recovery problemsUser Guide Viewing and changing settings Using the Setup UtilityStarting the Setup Utility program Using passwordsSetting, changing, and deleting a password User PasswordAdministrator Password Using Security Profile by DeviceSelecting a temporary startup device Selecting a startup deviceChanging the startup device sequence Advanced settings Exiting from the Setup Utility programUpdating flashing Bios from a diskette or CD-ROM Using system programsUpdating system programs Updating flashing Bios from your operating system Recovering from a POST/BIOS update failureUpdating system programs User Guide Basic troubleshooting Troubleshooting and diagnosticsSymptom Action Diagnostic programs PC-Doctor for Windows PC-Doctor for DOSCreating diagnostic diskettes PC-Doctor for Windows PE Cleaning the mouseOptical mouse Non-optical mouse Troubleshooting and diagnostics User Guide Online Books folder Getting information, help, and serviceInformation resources ThinkVantage Productivity CenterSafety and Warranty Access HelpHelp and service Using the documentation and diagnostic programs Calling for serviceUsing other services Purchasing additional servicesAppendix A. Manual modem commands Basic AT commandsSet Tone Dial as default Low speaker volumeSet Pulse 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 A. Manual modem commands User Guide Appendix B. Notices Television output notice TrademarksIndex Page Page Part Number 42Y4610
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TC A55-9636, 9640, 9645, 9644, 9643 specifications

Lenovo has consistently been at the forefront of innovation in the computing world, with a range of laptops and desktops that cater to a variety of needs and preferences. Among their popular offerings are the Lenovo 9640, 9643, TC A55-9636, 9644, and 9645. Each of these models is designed to provide exceptional performance, reliability, and user-friendly experience, making them appealing choices for both personal and business use.

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