Supported operating positions, Tools required | Lenovo 8458, 8455

Supported operating positions

Attention: Do not block the air vents on the top of the computer with any type of objects such as a monitor.

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

Note: An optional floor stand should be used when placing your computer in the vertical position.

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.

6User Guide

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Lenovo 8458, 8455, 8453, 8454, 8459, 8460 Supported operating positions, Tools required, Handling static-sensitive devices

Contents

User Guide Lenovo 3000 J Series Page Lenovo 3000 J Series Page Contents Iv User Guide Important safety information Conditions that require immediate action General safety guidelines Service Power cords and power adapters Plugs and outlets Extension cords and related devicesBatteries CD and DVD drive safety Heat and product ventilation Lithium battery notice Additional safety informationTo connect To disconnect Modem safety information Laser compliance statement Power supply statement Overview Information resources Xiv User Guide Installing options Features Connectivity Operating systems, preinstalled varies by model Available options Weight SpecificationsDimensions Environment Tools required Supported operating positionsHandling static-sensitive devices Installing external options Locating connectors on the rear of your computer Connector Description Obtaining device drivers Removing the cover Locating components Accessing system board components Identifying parts on the system board User Guide Microprocessor and heat sink 10 Sata IDE connectors Fan connector 11 Clear CMOS/Recovery jumper Installing memory Installing PCI adapters What to do next Security features Changing the battery Password protectionPadlock Erasing a lost or forgotten password clearing Cmos Replacing the cover and connecting the cables Viewing and changing settings Using the Setup UtilityStarting the Setup Utility program Using passwords Administrator or Supervisor Password Selecting a temporary startup device Exiting from the Setup Utility programSelecting a startup device Changing the startup device sequence User Guide Appendix A. Updating system programs Updating flashing Bios from a disketteSystem program User Guide Cleaning an optical mouse Appendix B. Cleaning the mouseCleaning a mouse with a ball User Guide Appendix C. Manual modem commands Basic AT commands Set Tone Dial as default Low speaker volumeSet Pulse dial as default Internal speaker on until carrier detected Extended AT commands MNP/V.42/V.42bis/V.44 commands Fax Class 1 commands Fax Class 2 commands Voice commands Appendix C. Manual modem commands User Guide Appendix D. Notices Television output notice Trademarks Index Page Page Part Number 41T3715