Accessing system board components | Lenovo 8460, 8455, 8453, 8454

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 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 Specifications DimensionsWeight 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 Using the Setup Utility Starting the Setup Utility programViewing and changing settings Using passwords Administrator or Supervisor Password Exiting from the Setup Utility program Selecting a startup deviceSelecting a temporary 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 Low speaker volume Set Pulse dial as defaultSet Tone 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