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Lenovo 8460, 8455, 8453, 8454, 8459, 8457, 8458, 8456 manual Accessing system board components

Models: 8456 8458 8457 8460 8459 8454 8453 8455

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Accessing system board components

Accessing system board components

You might need to remove the drive bay assembly to access system board components such as memory, the battery, and CMOS.

To access system board components and the drives:

1.Remove the computer cover. See “Removing the cover” on page 10.

2.Remove the front bezel by releasing the three tabs and pivoting the bezel forward to remove completely.

3.Remove the two screws at the front of the chassis securing the drive bay assembly.

12User Guide

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Lenovo 8460, 8455, 8453, 8454, 8459, 8457, 8458, 8456 manual Accessing system board components

Contents

User Guide Lenovo 3000 J Series Types 8453, 8454, 8455, 8456, 8457, 8458, 8459,Page Lenovo 3000 J Series Third Edition June Copyright Lenovo Contents ivUser Guide Important safety information Conditions that require immediate actionGeneral safety guidelines ServicePower cords and power adapters Extension cords and related devices Plugs and outletsBatteries viiiUser GuideCD and DVD drive safety Heat and product ventilationLithium battery notice Additional safety informationDo not Modem safety information Laser compliance statementPower supply statement xiiUser GuideInformation resources Overviewxiii xivUser Guide Chapter 1. Installing options FeaturesSystem management features Input/output featuresMicroprocessor MemoryPower Security featuresPreinstalled software Operating systems, preinstalled varies by modelAvailable options Specifications DimensionsWeight EnvironmentSupported operating positions Tools requiredHandling static-sensitivedevices 6User GuideInstalling external options Locating connectors on the rear of your computer Connector Obtaining device driversDescription Removing the cover Locating components Accessing system board components Identifying parts on the system board Microprocessor and heat sink Microprocessor and heat sink Microprocessor and heat sink Installing memory Installing PCI adapters What to do nextSecurity features Password protection Changing the batteryPadlock 20User GuideTo change the battery Replacing the cover and connecting the cables Chapter 2. Using the Setup Utility Starting the Setup Utility programViewing and changing settings Using passwordsAdministrator or Supervisor Password Exiting from the Setup Utility program Selecting a startup deviceSelecting a temporary startup device Changing the startup device sequence26User Guide Appendix A. Updating system programs Updating flashing BIOS from a disketteSystem program 28User Guide Cleaning an optical mouse Appendix B. Cleaning the mouseCleaning a mouse with a ball To clean a mouse with a ball Appendix C. 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 Appendix C. Manual modem commands Attention Switzerland UserTelekom PTT SCR-BE Taximpulssperrfilter-12kHz PTT Art. Bakom 93.0291.Z.N38User Guide Appendix D. Notices Lenovo United States, Inc500 Park Offices Drive, Hwy. Research Triangle Park, NC U.S.ATelevision output notice TrademarksIndex A serial connector 9 Setup Utility 23 system board using passwords 23 Setup Utilitysystem management 2 system programs video subsystemPage Part Number: 41T3715 Printed in USA 1P P/N: 41T3715