Installing a redundant power supply
You can install a second 920-watt hot-swap power supply. This upgrade option
includes a hot-swap power supply. You must also purchase a second power cord to
connect the power supply to a power source.
To install the redundant power option, complete the following steps:
1. Read the safety information that begins on page vii and “Installation guidelines”
on page 29.
2. Turn off the server and peripheral devices and disconnect the power cords.
3. Remove the power-supply filler from the second power-supply bay.
4. Slide the new power supply partially into the empty power-supply bay. Pinch the
orange release latch and push the power supply the rest of the way into the bay
until it is seated.
5. Connect one end of the new power cord into the connector on the back of
power supply, and connect the other end of the power cord to a properly
grounded electrical outlet.
6. Make sure that the AC power LED on the top of each power supply is lit,
indicating that the power supply is operating correctly. If the server is turned on,
make sure that the DC power LED on the top of the power supply is lit also.
If you have other devices to install or remove, do so now. Otherwise, go to
“Completing the installation.”
Completing the installation
To complete the installation, complete the following steps:
1. If the bezel is open, insert the bezel hinges into the slots on the server chassis
and close the bezel.
2. Position the left-side cover over the server.
3. Place the bottom edge of the cover onto the bottom edge of the server.
4. Rotate the top edge of left-side cover toward the server; then, press down on
the cover handle until it clicks into place.
5. Rotate the bezel to its fully closed position.
6. Using the supplied key, lock the left-side cover and bezel.
98 IBM System x3400 M3 Types 7378 and 7379: Installation and User's Guide
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