Overview

This guide is intended to be used by customers who are replacing Customer

Replaceable Units (CRUs). In this document, CRUs will be referred to as parts.

This guide does not include procedures for all parts. It is expected that cables, switches, and certain mechanical parts can be replaced by trained service personnel without the need for step-by-step procedures.

This guide contains instructions for replacing the following parts:

Note: Use only the parts provided by Lenovo.

vMemory module

vPCI adapter card

vKeyboard

vMouse

Safety information

Do not open your computer or attempt any repair before reading the “Important safety information” in the Safety and Warranty Guide that was included with your computer. To obtain a copy of the Safety and Warranty Guide, go to the World Wide Web at http://www.lenovo.com/support.

Additional information resources

If you have Internet access, the most up-to-date information for your computer is available from the World Wide Web.

You can find the following information:

vCRU removal and installation instructions

vCRU removal and installation videos

vPublications

vTroubleshooting information

vParts information

vDownloads and drivers

vLinks to other useful sources of information

vSupport phone list

To access this information, point your browser to http://www.lenovo.com/support

Tools required

To replace some parts in your computer, you might need a flat-blade or Phillips screwdriver. Additional tools might be needed for certain parts.

Handling static-sensitive devices

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

© Lenovo 2005, 2007. Portions © IBM Corp. 2005.

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Lenovo 41X8111 manual Overview, Safety information Additional information resources, Tools required