Dell PowerEdge T440 EMC Installation and Service Manual - Page 126

Installing a power supply unit, Removing a cabled power supply unit

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Installing a power supply unit Prerequisites 1. Follow the safety guidelines listed in Safety instructions. 2. For systems that support redundant PSU, ensure that both the PSUs are of the same type and have the same maximum output power. NOTE: The maximum output power (shown in watts) is listed on the PSU label. Steps Slide the PSU into the system until the PSU is fully seated and the release latch snaps into place. Figure 82. Installing a power supply unit Next steps 1. Connect the power cable to the PSU, and plug the cable into a power outlet. CAUTION: When connecting the power cable to the PSU, secure the cable to the PSU with the strap. NOTE: When installing, hot swapping, or hot adding a new PSU, wait for 15 seconds for the system to recognize the PSU and determine its status. The PSU redundancy may not occur until discovery is complete. Wait until the new PSU is discovered and enabled before you remove the other PSU. The PSU status indicator turns green to signify that the PSU is functioning properly. Removing a cabled power supply unit Prerequisites 1. Follow the safety guidelines listed in Safety instructions. 2. Follow the procedure listed in Before working inside your system. Steps 1. Disconnect all the power cables from the power supply unit (PSU). 2. Remove the screw securing the PSU to the chassis and slide the PSU out of the PSU cage. 126 Installing and removing system components

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Installing a power supply unit
Prerequisites
1.
Follow the safety guidelines listed in
Safety instructions
.
2.
For systems that support redundant PSU, ensure that both the PSUs are of the same type and have the same maximum output
power.
NOTE:
The maximum output power (shown in watts) is listed on the PSU label.
Steps
Slide the PSU into the system until the PSU is fully seated and the release latch snaps into place.
Figure 82. Installing a power supply unit
Next steps
1.
Connect the power cable to the PSU, and plug the cable into a power outlet.
CAUTION:
When connecting the power cable to the PSU, secure the cable to the PSU with the strap.
NOTE:
When installing, hot swapping, or hot adding a new PSU, wait for 15 seconds for the system to recognize the
PSU and determine its status. The PSU redundancy may not occur until discovery is complete. Wait until the new
PSU is discovered and enabled before you remove the other PSU. The PSU status indicator turns green to signify
that the PSU is functioning properly.
Removing a cabled power supply unit
Prerequisites
1.
Follow the safety guidelines listed in
Safety instructions
.
2.
Follow the procedure listed in
Before working inside your system
.
Steps
1.
Disconnect all the power cables from the power supply unit (PSU).
2.
Remove the screw securing the PSU to the chassis and slide the PSU out of the PSU cage.
126
Installing and removing system components