Power Supply Unit; Installation - NEC Express5800 Series User Manual

Chapter 2 Preparations
1.26

Power Supply Unit

You can implement the power supply unit (500 W) (N8181-168) or the redundant power supply cage
(N8181-174) equipped with 2 units of the hot-swappable power supply units to this unit.
The server provides a redundant power configuration that ensures continued operation of the system in the
unlikely event one of the power supply units fails.
1.26.1

Installation

Prepare the following tools before installing and removing the options.
 T-10 hexalobular driver
 T-15 hexalobular driver
To install the power supply unit, follow these steps
1. See steps 1 to 7 in Chapter 2 (1.2 Overview of Installation and Removal) for preparations
2. Remove the blank cover or the 2nd riser card of the 2nd riser card implementation part and 2.5-type HDD
cage (rear).
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Note
AC power supply unit has a cable tie to prevent AC cable from slipping out.
Note
The both two power supply units installed in the server must have the same
capacity. Make sure that the two power supply units have the same part number
and the same label color. If the two power supply units are inappropriate, the
system may become unstable to be shut down.
Note
In order to prevent damage of the system due to improper cooling or elevated
temperature, please do not activate the server or enclosure without implementing
any of component or blank on all of drive bays and device bays.
Important
The surface becomes hot after use so to avoid burns please allow the drive
and internal parts of the system to cool before touching.
Express5800/R120h-2E User's Guide
1. Installing Internal Optional Devices