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Replacing FRUs
This section provides instructions on how to install or replace hardware for your server. You can expand the
capabilities of your server and maintain your server by installing or replacing hardware.
Attention
Do not open your server or attempt any repair before reading and understanding the Chapter 1 “About this
manual” on page 1 and the Safety Information book. To obtain a copy of the Safety Information book,
go to:http://www.lenovo.com/support
Notes:
1. Use only server parts provided by Lenovo.
2. When installing or replacing a FRU, use the appropriate instructions in this section along with the
instructions that come with the FRU.
Removing the server cover
Attention
Do not open your server or attempt any repair before reading and understanding the Chapter 1 “About this
manual” on page 1
and the Safety Information book. To obtain a copy of the Safety Information book,
go to:http://www.lenovo.com/support
This section provides instructions on how to remove the server cover.
CAUTION:
Turn off the server and wait three to ve minutes to let the server cool before removing
the server cover.
To remove the server cover, do the following:
1. Remove any media from the drives and turn off all attached devices and the server.
2. Disconnect all power cords from electrical outlets.
3. Disconnect the power cords, Input/Output (I/O) cables, and any other cables that are connected to the
server. See “Front view” on page 23 and “Rear view” on page 23.
4. Remove any locking device that secures the server cover, such as a padlock or an integrated cable lock.
5. Remove any thumbscrews that secure the server cover.
6. Press the cover-release button on the side of the server and slide the cover to the rear of the server
to remove the cover.
30 ThinkServerHardware Maintenance Manual