Power Supply Unit (Sas Hot-Plug Hdd Model); Installation - NEC Express5800/120Rg-1 User Manual

9-18 Upgrading Your Server

POWER SUPPLY UNIT (SAS HOT-PLUG HDD MODEL)

Your server contains one or two power supplies.
The second power supply is optional and provides a redundant configuration that ensures continued
operation of the system in the unlikely event one of the power supplies fails.

Installation

Take the following steps to install a power supply unit:
1.
See the section "Preparing for Installation and Removal" described earlier to prepare.
IMPORTANT:
the server to malfunction or fail.
2.
Pull the cable arm toward the rear of the server, and confirm the slot for installing an
optional power supply unit.
3.
Hold and pull the lever of the blank cover and remove the blank cover.
IMPORTANT:
Be sure to turn off the power. Failure to do so causes
Keep the removed blank cover for future use.
Power supply Power supply
slot (option) slot (standard)