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DR4300 Owners Manual
Installing an AC power supply unit
129
a. PSU blank
b. PSU bay
Removing an AC power supply unit
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.
NOTE:
You may have to 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.
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.
2. Press the release latch and slide the PSU out of the chassis by using the PSU handle.
Figure 59. Removing an AC PSU
a. release latch
b. PSU cable connector
c. PSU
d. power connector
e. PSU handle
Installing an AC power supply unit
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.
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