Dell EMC VxFlex Ready Node R840, Руководство пользователя

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Replacing power supply units
The power supply unit (PSU) is an internal hardware component that supplies power
to the components on the system.
Your system supports two 2400 W, 2000 W, or 1600 W AC PSUs.
For more information about power supply units, see
Technical specifications .
l
When two PSUs are used, they must be of the same maximum output power.
l
When two identical PSUs are installed, power supply redundancy is configured in
system BIOS. In redundant mode, power is supplied to the system equally from
both PSUs.
Procedure for replacing or adding a power supply unit
To replace a power supply unit (PSU), perform the tasks in the following checklist, in
the order they are listed. The procedures for AC and DC PSUs are identical.
Power supply units are hot swappable and do not require a graceful shutdown.
Note
Before starting this FRU procedure, familiarize yourself with the topics in Important
information before performing a FRU procedure on page 56.
Check
List Task Topic
☐
1 Identify the PSU to be replaced. See Power supply unit indicator codes on
page 208.
☐
2 Remove the power supply unit. See Remove a power supply unit on page
150.
☐
3 Install the power supply unit. See Install a power supply unit on page
151.
Note
For DC power supply unit wiring instructions, see Wiring instructions for a DC power
supply unit .
Remove a power supply unit
The procedure for removing AC and DC PSUs is identical.
Before you begin
Follow all safety guidelines.
CAUTION
The system requires one power supply unit (PSU) for normal operation. On
power-redundant systems, remove and replace only one PSU at a time in a
system that is powered on.
Hardware FRU procedures
150 VxFlex Ready Node R840 Hardware Field Replacement Unit and Service Manual