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Install the power supply unit
Prerequisites
Follow the safety guidelines listed in
About this task
The technical white paper Servicing and Replacing Power Supplies for DellEMC PowerEdge R940/R740/R740xd Systems with
Single and Dual CMA Solutions provides additional details about installing power supplies with the cable management arms
installed on the back of the system.
Steps
1. Verify that nothing has dropped into the empty PSU slot before installing the replacement PSU.
2. Slide the PSU into the system until the PSU is fully seated and the release latch snaps into place.
3. 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.
Verify the replacement power supply
Prerequisites
Establish a connection to the system as described in
page 14.
About this task
Complete the following steps to verify the replacement power supply.
Steps
1. Enter the enclosure show powersupply command to check the status of each power supply.
Safety instructions
on page 13.
Establish a serial management connection to the PowerProtect system
Replace a Power Supply
on
33
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