Installing The Power Supply Unit Blank; Removing An Ac Power Supply Unit - Dell Precision Rack 7910 Owner's Manual

2. power supply bay

Installing the power supply unit blank

Install the power supply unit blank only in the second power supply unit bay.
Steps
1. Align the blank with the power supply unit bay.
2. push it into the chassis until it clicks into place.

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 came with the product.
CAUTION: The system requires one power supply for normal operation. On power-redundant systems, remove
and replace only one power supply at a time in a system that is powered on.
NOTE: You may have to unlatch and lift the optional cable management arm if it interferes with power supply removal. For
information about the cable management arm, see the system's rack documentation.
Steps
1. Disconnect the power cable from the power source and from the power supply unit you intend to remove and remove the
cables from the strap.
2. Press the release latch and slide the power supply unit out of the chassis.
Figure 37. Removing and installing an AC power supply unit
1. release latch
3. power supply unit
5. power supply unit handle
68 Installing and removing system components
2. power supply unit cable connector
4. connector