8. Lift the server cover off the server and set the server cover aside.
Attention: For proper cooling and airflow, replace the server cover before you
turn on the server.
Removing air baffles
There are two air baffles inside the server. These air baffles direct air to cool
components inside the server. You might have to remove these baffles to access
certain components or connectors on the system board such as DIMMS, IDE
cables, or microprocessors.
To remove an air baffle, complete the following steps:
1. Read the safety information that begins on page v and “Installation guidelines”
on page 9.
2. Turn off the server and peripheral devices and disconnect the power cords and
all external cables, if necessary; then, remove the server cover.
3. To remove the air baffle that is closest to the wall of the server, complete the
following steps.
Baffle mounting
hole
Baffle pin
Tabs
Baffle
a. Slide the baffle back from the front of the server to disengage the tab at the
front of the baffle from the bulkhead that runs the width of the server.
b. Lift the baffle up, making sure that the pins come out of the holes on the
system board.
Attention: For proper cooling and airflow, replace the air baffle before you
turn on the server. Operating the server with the air baffle removed might
damage server components.
12 IBM System x3550 Type 7978: Installation Guide
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