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CHAPTER 4: Installing Components
46
11 Push down the heat sink retaining levers (3) and lock them under the retaining hooks on
the heat sink socket.
12 Follow the instructions in “Closing the server case” on page 30.
Replacing a power supply module
Your server uses as many as two 650 W hot-swappable power supply modules. If your server
has both power supply modules installed, the modules act as redundant, hot-swappable power
supplies. If one of the two power supplies fails, the other power supply supports the server while
you replace the failed power supply. You do not need to turn off the server or disconnect
peripheral devices to replace a failed redundant power supply.
If your server is only equipped with a single power supply, the server must be turned off and
the AC power cord removed before replacing it.
To replace a power supply module:
1 If your server is equipped with more than one power supply module, determine which
power supply module has failed (the LED on the power supply will be orange).
2 If your server has only one power supply module installed, make sure that you turn off
the server, then unplug the power cord before continuing.
- OR -
If your server has two power supply modules installed, you do not need to turn off the
power to the server before continuing.
Caution
The power supplies in this server contain no user-serviceable parts. Only a qualified
computer technician should service the power supplies.
Your server comes with 3-wire AC power cords fitted with the correct plug style for your
region. If this plug does not match the connector on your surge protector, UPS, or wall
outlet, do not attempt to modify the plug in any way. Use a surge protector, UPS, or wall
outlet that is appropriate for the supplied AC power cords.