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Dell PowerEdge M1000e Chassis Management Controller Firmware Version 5.1 User’s Guide

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110V PSUs AC Operation

Some PSUs support operation with 110V AC input. This input can exceed the allowed limit for the branch circuit. If any PSUs are connected to 110V AC, the user needs to set CMC for normal operation of the enclosure. If it is not set and 110V PSUs are detected, all subsequent server power allocation requests are denied. In this case, additional servers cannot be powered on, regardless of their priority. You can set CMC to use 110 V PSUs using the Web interface or RACADM.

Power supply entries are logged to the SEL log:

  • When 110V power supplies are detected or removed.
  • When the 110V AC input operation is enabled or disabled.

The overall power health is at least in Non-Critical state when the chassis is operating in 110V mode and the user has not enabled the 110V operation. The "Warning" icon is displayed on the Web interface main page when in Non-Critical state.

Mixed 110V and 220V operation is not supported. If CMC detects that both voltages are in use, then one voltage is selected and those power supplies connected to the other voltage are powered off and marked as failed.


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