Chapter 9. Replacing FRUs (Types 7390, 7391, 7392, 7396,
7397, and 7398)
Important
Before you replace any FRU, read Chapter 2, “Safety information,” on page 3.

These precautions and guidelines will help you work safely.

FRU replacements are to be done by trained service technicians only.
This chapter does not contain a remove and replace procedure for all FRUs. Only
the major FRUs are documented.

Note: The computer might look slightly different than the illustrations in this

chapter.

© Lenovo 2006, 2008. Portions © IBM Corp. 2005. 113