Removing The Top Cover; Removing The Top-Cover Fan Door - IBM System x3755 M3 7164 Installation And User Manual

Removing the top cover

Note: Before you install optional hardware devices, make sure that the server is
working correctly. Start the server, and make sure that the operating system starts,
if an operating system is installed, or that a 19990305 error code is displayed,
indicating that an operating system was not found but the server is otherwise
working correctly. If the server is not working correctly, see the Problem
Determination and Service Guide on the IBM Documentation CD for information
about how to run diagnostics.
Important: The server automatically powers off when the top cover is removed.
To remove the top cover, complete the following steps:
1. Read the safety information that begins on page v and "Installation guidelines"
2. Turn off the server and all attached peripheral devices. Disconnect all power
3. Slide the server out of the rack until the slide rails lock into place.
4. Loosen the two thumbscrews that secure the cover to the chassis.
5. Press on the two blue grip points and slide the cover toward the rear; then, lift

Removing the top-cover fan door

Attention:
non-hot-swap fan.
To remove the top-cover fan door, complete the following steps:
1. Read the safety information that begins on page v and "Installation guidelines"
2. If you are removing or replacing a non-hot-swap fan, turn off the server and all
3. Slide the server out of the rack until the slide rails lock into place.
4. Press and rotate up the release latches.
on page 28.
cords; then, disconnect all external signal cables from the server.
the cover off the server. Set the cover aside.
You must turn off the server before you remove or install a
on page 28.
attached peripheral devices. Disconnect all power cords; then, disconnect all
external signal cables from the server.
Cover
Chapter 2. Installing optional devices
Thumbscrew
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