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The CMC module controls power management for the system. You can program the CMC to configure
the power budget, redundancy, and dynamic power of the entire enclosure (chassis, servers, I/O
modules, iKVM, CMC, and power supplies). The power management service optimizes power
consumption and re-allocates power to different modules based on real-time demand. For more
information, see the CMC User's Guide at support.dell.com/manuals.
NOTE: The wattage of a power supply module is listed on its regulatory label.
Power Supply Blanks
If the M1000e enclosure is operated with only three power supplies, power supply blanks must be
installed in the three unoccupied power supply bays (4 through 6) to maintain proper cooling airflow in
the enclosure.
AC Power Supply Modules
NOTE: A 2700 W power supply module requires 110 V to 240 V input from an AC power source. If a
power supply module is plugged into a 110 V electrical outlet, the power supply operates at 1350 W,
if you select the Allow 110 VAC Operation check box in the CMC Power Configuration screen.
NOTE: A 3000 W power supply module requires 200 V to 240 V input from an AC power source.
NOTE: PDU inlet cords for this system may be too thick to fit in the wire guides installed in the rack
vertical rails. If this is the case, remove the wire guides by removing the attachment screw securing
each guide. Route the PDU inlet cords along the vertical rails, securing them with tie wraps or strips.
Removing An AC Power Supply
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.
NOTE: The power supply modules are hot-swappable. Remove and replace only one power supply
module at a time in a system that is turned on.
1. Release the retention clip on the power cable and disconnect the power cable from the power
supply module.
2. Press down on the power supply module release button on the handle.
3. Rotate the power supply module handle down to eject the power supply module.
4. Slide the power supply module out of the enclosure.
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