Lenovo ThinkCentre M55e - Manual (Page 7)

Overview
This guide is intended to be used by customers who are replacing Customer
Replaceable Units (CRUs).
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 ™ .
v Hard disk drive
v Diskette drive
v Optical drive
v Heat sink and fan assembly
v System fan assembly
v Memory module
v PCI adapter card
v Keyboard
v Mouse
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:
v CRU removal and installation instructions
v CRU removal and installation videos
v Publications
v Troubleshooting information
v Parts information
v Downloads and drivers
v Links to other useful sources of information
v Support 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.
© Lenovo 2006, 2007. Portions © IBM Corp. 2005. v