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10. Slide the server into the rack.
11. Connect the cables and power cords.
12. Turn on all attached devices and the server.
Removing a heat-sink retention module
To remove a heat-sink retention module, complete the following steps:
1. Read the safety information that begins on page vii and "Installation guidelines"
2. Turn off the server, and disconnect all power cords and external cables.
3. Remove the cover (see "Removing the cover" on page 90).
138
IBM System x3650 Type 7979 and 1914: Problem Determination and Service Guide
Attention:
Do not touch the thermal grease on the bottom of the heat sink or
set down the heat sink after the plastic cover is removed. Touching the thermal
grease will contaminate it.
a. Make sure that the heat-sink release lever is in the open position.
b. Remove the plastic protective cover from the bottom of the heat sink.
c. Align the heat sink above the microprocessor with the thermal grease side
down. Press firmly on the heat sink.
Heat sink
release lever
d. Slide the rear flange of the heat sink into the opening in the retainer
bracket.
e. Press down firmly on the front of the heat sink until it is seated securely.
f. Rotate the heat-sink release lever to the closed position and hook it
underneath the lock tab.
8. Replace the microprocessor air baffle (see "Installing the microprocessor air
baffle" on page 92).
9. Install the cover (see "Installing the cover" on page 91).
on page 87.
Thermal grease
Heat sink
Microprocessor
Retainer bracket
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