CAUTION:
To ensure proper system cooling, the PSU blank must be installed in the second PSU bay in a non-redundant
configuration. Remove the PSU blank only if you are installing a second PSU.
Figure 98. Removing a power supply unit blank
Next steps
Install the PSU blank.
Related links
Installing a power supply unit blank
Installing a power supply unit blank
Prerequisites
1
Follow the safety guidelines listed in
2
Install the power supply unit (PSU) blank only in the second PSU bay.
Steps
Align the PSU blank with the PSU slot and push it into the PSU slot until it clicks into place.
Figure 99. Installing a power supply unit blank
Removing a power supply unit
The procedure for removing AC and DC PSUs is identical.
Prerequisites
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.
1
Follow the safety guidelines listed in
Dell EMC PowerEdge R640 Installation and Service Manual
Installing and removing system components
143
