Chapter 5. Customer Replaceable Unit Parts - Lenovo 9308-4PX Installation Manual

Chapter 5. Customer replaceable unit parts

The replaceable components that are available for the 42U Enterprise Primary Rack and 42U Enterprise
Expansion Rack are described in this chapter.
For an updated parts listing, go to
Replaceable components are of three types:
• Tier 1 customer replaceable unit (CRU): Replacement of Tier 1 CRUs is your responsibility. If IBM
installs a Tier 1 CRU at your request, you will be charged for the installation.
• Tier 2 customer replaceable unit: You may install a Tier 2 CRU yourself or request IBM to install it, at no
additional charge, under the type of warranty service that is designated for your server.
• Field replaceable unit (FRU): FRUs must be installed only by trained service technicians.
For information about getting service and assistance, see "Getting help and information from the World Wide
Web" on page 22. For information about the terms of the warranty , see the Warranty Information document
that comes with the rack cabinet.
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