3. Align the screw holes on the safety cover with the screw holes on the
power-supply paddle card.
4. Install the screws to secure the safety cover on the power-supply paddle card.
5. Reconnect the power-supply paddle card cables.
6. Install the air baffle (see “Installing the air baffle” on page 150).
7. If you have the optional hot-swap rear hard disk drive cage installed, rotate it
down (see “Rotating the optional hot-swap rear hard disk drive cage down” on
page 148).
8. Install the cover (see “Installing the cover” on page 146).
9. Install the power supplies.
10. Reconnect the external cables; then, reconnect the power cords and turn on
the peripheral devices and the server.
Removing the 3.5-inch HS HDD backplane
To remove the hot-swap hard disk drive backplane, complete the following steps:
1. Read the safety information that begins on page vii and “Installation guidelines”
on page 133.
2. Turn off the server and peripheral devices, and disconnect the power cord and
all external cables.
3. Remove all hot-swap hard disk drives (see “Removing a hot-swap hard disk
drive” on page 138).
4. Remove the cover (see “Removing the cover” on page 145).
5. Disconnect the signal cables.
6. Remove the system fan cage to obtain more room (see “Removing the system
fan cage” on page 190).
7. Make note of where the cables are attached to the backplane; then, disconnect
them.
8. Press the release latches and rotate out the top of the backplane ; then, lift the
backplane out of the server by pulling outwards and lifting it up.
196 IBM System x3630 M3 Type 7377: Problem Determination and Service Guide
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