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 lose the
ability to view the LEDs because the LEDs are not lit when the power
source is removed. Before you disconnect the power source, make a
note of which LEDs are lit, including the LEDs that are lit on the front
panel, on the rear panel, and LEDs inside the server on the system
board; then, see the Problem Determination and Service Guide for
information about how to solve the problem.
3. If the server has been installed in a rack, loosen the two thumbscrews on the
front of the server and remove the server out of the rack enclosure; then, place
it on a flat, static-protective surface.
4. Press down firmly on the blue tab on the top of the cover (on the right side near
the front of the server) and slide the cover toward the rear of the server until the
cover has disengaged from the chassis.
Cover-release
button
5. Lift the cover off the server and set it aside.
Attention: For proper cooling and airflow, replace the server top cover before you
turn on the server.
Removing the air baffle
To remove the air baffle, complete the following steps:
1. Read the safety information that begins on page “Safety” on page vii and
“Installation guidelines” on page 25.
2. Turn off the server and peripheral devices and disconnect the power cords and
all external cables, if necessary.
3. Remove the server top cover (see “Removing the server top cover” on page
27).
4. Grasp the air baffle; then, lift it up out of the server and set it aside.
Attention: For proper cooling and airflow, replace the air baffle before you
turn on the server. Operating the server with an air baffle removed might
damage server components.
28 IBM System x3250 M4 Type 2583: Installation and User’s Guide
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