The default PSU settings are as follows:
● If the load on the active PSU is more than 50 percent of PSU rated power wattage, then the redundant PSU is switched to
the active state.
● If the load on the active PSU falls below 20 percent of PSU rated power wattage, then the redundant PSU is switched to
the sleep state.
You can configure the hot spare feature by using the iDRAC settings. For more information, see the iDRAC User’s Guide
available at www.dell.com/poweredgemanuals.
Removing a power supply unit blank
Prerequisites
Follow the safety guidelines listed in the Safety instructions.
Steps
Pull the blank out of the system.
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 120. Removing a power supply unit blank
Next steps
Replace the PSU or PSU blank.
Installing a power supply unit blank
Prerequisites
1. Follow the safety guidelines listed in the Safety instructions.
NOTE: Install the power supply unit (PSU) blank only in the second PSU bay.
2. Remove the PSU.
Steps
Align the PSU blank with the PSU bay and push it into the PSU bay until it clicks into place.
124
Installing and removing system components
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