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PRIMERGY RX300 S3 User's Guide
7
Installing Internal Options
7.9 Installing Power Supply Units
One power supply unit (PSU) is installed in this server by default. Up to two PSUs
can be installed.
By adding one more PSU, the redundant power feature can be enabled.
This section contains notes on adding a PSU, and explains the procedures for installation, removal, and
replacement.
Replace the defective PSU as soon as possible.
7.9.1 Installation Location of the PSUs and Installable
PSUs
Install the PSU in PSU 2.
The following PSU can be installed on this server.
7.9.2 How to Install the Power Supply Unit
1 Turn off the server and all peripheral devices. Also unplug the power cable from
the inlet.
"1.4.3 Turning Off the Server" (pg.33)
• Before installing/removing a PSU, turn off the server and all peripheral devices
("1.4.3 Turning Off the Server" (pg.33)). Also unplug the power cables from
the PSU. Failure to do so may cause electric shock.
However, when the redundant power function is supported, a defective PSU
can be replaced without shutting down the server.
• Do not insert your hands in the PSU slot when removing the PSU. Doing so
may cause electric shock.
table: Installable PSU
Product name Model
Internal PSU PG-PU120