Power Supply Unit; Installation - NEC Express5800/R120b-2 User Manual

9-20 Upgrading Your Server

POWER SUPPLY UNIT

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 page 9-4 to prepare.
IMPORTANT:
cause incorrect operations or a failure.
2.
Remove the blank cover.
Insert your fingers into the two round holes, and remove the cover.
IMPORTANT:
3.
Insert the power supply unit.
Be sure to turn off the power. Not doing so might
Keep the removed blank cover for future use.