IBM System x3550 M3, Installation And User Manual

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Microprocessor 2
air baffle
Hole for baffle tab
Baffle tab
Removing the DIMM air baffle
To remove the DIMM air baffle, complete the following steps:
1. Read the safety information that begins on page vii and “Installation guidelines”
on page 44.
2. Turn off the server and peripheral devices and disconnect the power cords and
all external cables, if necessary; then, remove the cover (see “Removing the
cover” on page 52).
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
operation information panel, on the light path diagnostics 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. Grasp the DIMM air baffle and lift the baffle up, making sure that the pin comes
out of the pin hole on the system board to the left of DIMM connector 9.
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IBM System x3550 M3 Types 4254 and 7944: Installation and User’s Guide