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Removing the power supply unit blank
Remove the power supply unit (PSU) blank when you are installing a second PSU or a 2.5 inch hard drive 
cage in the PSU 2 slot.
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.
Steps
Remove the PSU blank from the PSU 2 slot by pulling the blank outward.
CAUTION: To ensure proper system cooling, the PSU blank must be installed in the PSU 2 slot 
in a non-redundant configuration. Remove the PSU blank only if you are installing a second 
PSU or a 2.5 inch hard drive cage.
Figure 28. Removing and installing the PSU blank
1.
PSU blank
2. PSU slot
Next steps
Install PSU 2 or the 2.5 inch hard drive cage.
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