Chapter 2. Overview; Additional Information Resources - Lenovo ThinkStation 4155 Hardware Installation And Replacement Manual

Chapter 2. Overview

This guide provides information about installing and or replacing Customer
Replaceable Units (CRUs). However, this guide does not include procedures for all
parts. It is expected that cables, switches, and certain mechanical parts be replaced
by trained service personnel without the need for step-by-step procedures.
Note: Use only parts provided by Lenovo.
This guide contains instructions for installing or replacing the following parts:
v Battery
v Power supply
v Memory module
v Adapter card
v Heat sink and fan assembly
v Hard disk drive
v Optical drive
v Diskette drive or card reader
v Front panel connector assembly
v Hard disk drive fan assembly
v Rear fan assembly
v Internal speaker
v Keyboard
v Mouse

Additional information resources

If you have Internet access, the most up-to-date information for your computer is
available at:
http://www.lenovo.com/support
You can find:
v CRU removal and installation information
v CRU removal and installation videos
v Downloads and drivers
v Links to other useful sources of information
v Parts information
v Publications
v Support phone list
v Troubleshooting information
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