Removing The Power Supply Unit Blank; Installing The Power Supply Unit Blank - Dell SD630-S Owner's Manual

state monitors output voltage of the active PSU. If the output voltage of the active PSU drops, the PSU in
the sleep state returns to an active output state.
If having both PSUs active is more efficient than having one PSU in the sleep state, the active PSU can
also activate the sleeping PSU.
The default PSU settings are as follows:
• If the load on the active PSU is more than 50 percent, then the redundant PSU is switched to the
active state.
• If the load on the active PSU falls below 20 percent, 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 about iDRAC
settings, see the Integrated Dell Remote Access Controller User's Guide available at Dell.com/
idracmanuals.

Removing the power supply unit blank

If you are installing a second power supply unit (PSU), remove the PSU blank in the bay by pulling the
blank outward.
CAUTION: To ensure proper system cooling, the power supply 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 50. Removing the PSU blank
1. PSU blank

Installing the power supply unit blank

Install the power supply unit (PSU) blank only in the second PSU bay.
Align the PSU blank with the PSU bay and push it into the chassis until it clicks into place.
116
2. PSU bay