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CHAPTER 4: Installing Components
42
Replacing a power supply module and power
board
Your server uses as many as two 725 W hot-swappable power supply modules (optional). 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 (standard), 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.
3 Press down on the retaining clip (1) on the power supply to release the power supply
module (2) from the chassis.
4 Pull the power supply module straight out of the server with the handle. It may take
considerable force to remove.
5 Push the new power supply module into the server, with the retaining clip on the top,
until it clicks into place.
6 Reconnect the AC power cord for the new power supply module.
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.