Installing The Power Supply Unit Blank; Removing An Ac Power Supply Unit - Dell PowerEdge E31S Series Owner's Manual

Installing the power supply unit blank

Install the power supply unit (PSU) blank only in the second PSU bay.
Prerequisites
CAUTION: Many repairs may only be done by a certified service technician. You should only perform
troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or
telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by
your warranty. Read and follow the safety instructions that are shipped with your product.
1. Follow the safety guidelines listed in the Safety instructions section.
Steps
Align the power supply unit blank with the power supply unit slot and push it into the power supply unit slot until it clicks into
place.
Figure 72. Installing the PSU blank
a. PSU blank
b. PSU bay

Removing an AC power supply unit

Prerequisites
CAUTION: Many repairs may only be done by a certified service technician. You should only perform
troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or
telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by
your warranty. Read and follow the safety instructions that are shipped with your product.
CAUTION: The system needs 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.
If applicable, unlatch and lift the optional cable management arm if it interferes with the power supply unit (PSU) removal. For
information about the cable management arm, see the system's rack documentation.
Follow the safety guidelines listed in the Safety instructions section.
Steps
1. Disconnect the power cable from the power source and from the PSU you intend to remove, and then remove the cables
from the strap.
134 Installing and removing system components