Lenovo 3000 J Series manual Air circulation, Electrical outlets and cable lengths

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Where it is impossible to avoid reflections or to adjust the lighting, an antiglare filter placed over the screen might be helpful. However, these filters might affect the clarity of the image on the screen; try them only after you have exhausted other methods of reducing glare.

Dust buildup compounds problems associated with glare. Remember to clean your monitor screen periodically using a soft cloth moistened with a nonabrasive liquid glass cleaner.

Air circulation

Your computer and monitor produce heat. The computer has a fan that pulls in fresh air and forces out hot air. The monitor lets hot air escape through vents. Blocking the air vents can cause overheating, which might result in a malfunction or damage. Place the computer and monitor so that nothing blocks the air vents; usually, 51 mm (2 in.) of air space is sufficient. Also, make sure the vented air is not blowing on someone else.

Electrical outlets and cable lengths

The location of electrical outlets and the length of power cords and cables that connect to the monitor, printer, and other devices might determine the final placement of your computer.

When arranging your workspace:

vAvoid the use of extension cords. When possible, plug the computer power cord directly into an electrical outlet.

vKeep power cords and cables neatly routed away from walkways and other areas where they might get kicked accidentally.

For more information about power cords, see “Power cords and power adapters” on page vii and the warranty and safety information that is provided with your computer.

2User Guide

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Contents User Guide Lenovo 3000 J Series Page Lenovo 3000 J Series Page Contents Getting information, help Important safety information Conditions that require immediate actionGeneral safety guidelines Service and upgradesPower cords and power adapters Static electricity preventionViii User Guide Plugs and outlets Voltage-selection switchExtension cords and related devices Heat and product ventilation External devicesBatteries Operating environment To connect To disconnect Electrical current safety informationLithium battery notice Modem safety information Laser compliance statementPower supply statement Data safetyCleaning and maintenance Additional safety informationIntroduction Xvi User Guide Glare and lighting Arranging your workspaceComfort Air circulation Electrical outlets and cable lengthsSetting up your computer Connecting your computerUser Guide Setting up your computer User Guide 1394 User Guide Completing important tasks Turning on powerFinishing the software installation Installing other operating systems Updating your operating systemUpdating your antivirus software Shutting down the computerInstalling options FeaturesMemory Input/output features Available options Handling static-sensitive devices SpecificationsTools required Installing external options Locating the connectors on the front of your computer Locating the connectors on the rear of your computer Connector Description Obtaining device drivers Removing the cover Locating components Identifying parts on the system boardUser Guide Installing options Installing memory What to do nextInstalling adapters Secure the adapter with the screw as shown Installing internal drives Drive specificationsUser Guide Installing a drive User Guide Installing options Connecting the first CD drive or DVD drive Installing security features Connecting a serial ATA hard disk drivePadlock loop Password protectionChanging the battery Installing options Erasing a lost or forgotten password clearing Cmos Replacing 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 Using the Setup Utility Starting the Setup Utility programViewing and changing settings Using passwordsPassword considerations User PasswordAdministrator Password Setting, changing, and deleting a passwordSelecting a temporary startup device Using Security Profile by DeviceSelecting a startup device Changing the startup device sequence Advanced settingsExiting from the Setup Utility program Updating system programs Using system programsUpdating flashing Bios from a diskette User Guide Symptom Action Troubleshooting and diagnosticsBasic troubleshooting Diagnostic programs PC-Doctor for Windows PC-Doctor for DOSCreating diagnostic diskettes Optical mouse Cleaning the mousePC-Doctor for Windows PE Non-optical mouse Troubleshooting and diagnostics User Guide Getting information, help, and service Information resourcesOnline Books folder Lenovo CareAccess Help Warranty and safetyCalling for service Help and serviceUsing the documentation and diagnostic programs Using other services Purchasing additional servicesAppendix A. Manual modem commands Basic AT commandsLow speaker volume Set Pulse dial as defaultSet Tone 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 14, 22, 23 Page Part Number