Replacing A Failing Power Supply Unit - NEC Express5800 120Rj-2 User Manual

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Replacing a Failing Power Supply Unit

Do not remove a power supply unit operating normally.
If one power supply unit fails while the server contains two
power supply units in a redundant configuration, the failing
power supply unit can be replaced with the system operating
(power-on state). (Skip step 2.)
In configuration of two power units, AC power may be sup-
plied only to a single power unit through the power cord con-
nected to the power unit. If so, the power lamp on the other
power unit (to which a power cord is not connected) blinks
amber. When a power cord is connected to the power unit to
supply AC power, the lamp changes to blink green. If the
lamp still blinks amber, contact your service representative
to ask maintenance.
1. Locate the failing power supply unit by the AC power lamp on the rear of each
power supply unit. (The lamp of the failing power supply unit is amber.)
2. Shutdown the system, and press the power switch to turn off the power.
3. Disconnect the power cord from the failed power supply.
4. Hold the handle of the failing power supply.
5. While pressing the lever, pull the power supply to remove it from the chassis.
Figure 139: Pulling the Power Supply Unit out of the Chassis
Note:
Caution
1
2
184
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