Lenovo Secure Managed Client - Manual (Page 33)

Chapter 5. Customer Replaceable Units (CRUs)
Customer Replaceable Units (CRUs) are parts that can be upgraded or replaced
by the customer. There are two types of CRUs: self-service and optional-assist.
Self-service CRUs are easy to install, whereas optional-assist CRUs require
some technical skills and in some cases might require tools such as a
screwdriver. However, both self-service and optional-service CRUs are safe for
removal by the customer.
Customers are responsible for replacing all self-service CRUs. Optional-assist
CRUs can be removed and installed by customers or by a Lenovo service
technician during the warranty period.
The User Guide and Hardware Installation and Replacement Guide provide
instructions for replacing self-service and optional-assist CRUs. Refer to the
following tables to determine which publication contains the instructions you
need.
The publications are available on the Lenovo Web site at http://
www.lenovo.com.
Note: Only use computer parts provided by Lenovo. Refer to Chapter 3,
“Lenovo Limited Warranty,” on page 15 for warranty information about the
CRUs for your machine type.
List of Machine Types: 8332, 8333, 8334
User Guide Hardware Installation and
Replacement Guide
Self-service CRUs
Memory X
Power Supply X X
System fans X
Hot swap hard disk drives X
CMOS battery X
SAS cable X
RAID card X
Ethernet card X
Optional-service CRUs
SAS expander board X
Boot drive backplane X
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