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Removing and installing the cover
Use the following procedures to remove and install the cover:
Removing the cover
To remove the server cover, do the following:
1. Read the safety information in “Important Safety Information” on page 1 and “Guidelines for trained
service technicians” on page 115.
2. Turn off the server and peripheral devices and disconnect the power cords and all external cables, if
necessary.
Note: When you disconnect the power source from the server, you will lose the ability to view the
LEDs because the LEDs will not be lit with the power source removed. Before disconnecting the
power source, make sure to note which LEDs are lit, including the LEDs that are lit on the operator
information panel and LEDs that are lit inside the server on the system board.
3. If the server has been installed in a rack, slide the server out from the rack enclosure. See the Rack
Installation Instructions that come with the server for information about removing the server from the
rack.
4. Press down firmly on the two blue tabs 1 on each side of the top of the cover and slide the cover
toward the rear of the server until the cover has disengaged from the chassis.
5. Lift the server cover off the server and set it aside.
Installing the cover
Attention: For proper cooling and airflow, replace the server cover before you turn on the server.
To replace the server cover, do the following:
1. Align the cover over the server (toward the rear of the server) until the cover edges slip in position
over the chassis.
2. Press down on the two blue tabs on the front of the cover, while sliding the cover forward toward the
front of the server until the cover is completely closed.
Chapter 6. Replacing FRUs 119