User's Manual

Power Management 293
When you enable DPSE, the extra PSUs may be placed in Standby mode to
increase efficiency and save power. For more information, see "Dynamic
Power Supply Engagement" on page 296.
Power Budgeting for Hardware Modules
Figure 9-4 illustrates a chassis that contains a six-PSU configuration.
The PSUs are numbers 1-6, starting on the left-side of the enclosure.
Figure 9-4. Chassis With Six-PSU Configuration
CMC maintains a power budget for the enclosure that reserves the necessary
wattage for all installed servers and components.
CMC allocates power to the CMC infrastructure and the servers in the
chassis. CMC infrastructure consists of components in the chassis, such as
fans, I/O modules, and iKVM (if present). The chassis may have up to 16
servers that communicate to the chassis through the iDRAC. For more
information, see the iDRAC User’s Guide at support.dell.com/manuals.
PSU1 PSU2 PSU3 PSU4 PSU5 PSU6