IBM 7378 Problem Determination And Service Manual page 224

2. To install the UltraSlim DVD drive on models with four 3.5-inch, complete
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IBM System x3400 M3 Types 7378 and 7379: Problem Determination and Service Guide
k. Connect power and signal cables to the drive and the connectors on the
system board. (See "Internal cable routing and connectors" on page 164 for
more information.)
l. Reinstall the air baffle.
m. Reinstall the fan cage assembly (see "Installing the fan cage assembly" on
page 244.)
n. Rotate the power-supply cage assembly back into the server. Press the
power-supply cage release tab and rotate the power-supply cage assembly
into the chassis.
o. Close the bezel.
p. Install and lock the left-side cover (see "Installing the left-side cover" on
page 181).
q. Reconnect the external cables and power cords; then, turn on the attached
devices and turn on the server.
the following steps:
v Locate the documentation that comes with the drive and follow those
instructions in addition to the instructions in this chapter.
v Make sure that you have all the cables and other equipment that are
specified in the documentation that comes with the drive.
v The server supports one ultra-slim SATA optical drive.
a. If you are replacing a drive, make sure that:
v You have all the cables and other equipment that are specified in the
documentation that comes with the new drive.
v You have checked the instructions that come with the new drive to
determine whether you must set any switches or jumpers in the drive.
v You have removed the blue optical drive rails from the side of the old
drive and have them available for installation on the new drive.
Note: If you are installing a drive that contains a laser, observe the
following safety precaution.