Low-Voltage Dimm Considerations - Cisco UCS C22 M3 User Manual

Low-Voltage DIMM Considerations

The C22 M3 server can be ordered with low-voltage (1.35 V) DIMMs only. Note the following considerations:
Low-voltage DIMMs within the server must have the identical manufacturer, type, speed,
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and size.
Low-voltage DIMMs and standard-voltage DIMMs can be mixed in the same server. Note that
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this causes the system BIOS to default to standard-voltage operation (Performance Mode).
That is, the server cannot operate in Power Saving Mode unless all DIMMs are low-voltage
DIMMs.
CPUs that have a maximum memory frequency less than 1333 MHz support low-voltage
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DIMMs operating in Power Saving Mode only, and do not support Performance Mode.
Cisco UCS C22 M3 High-Density SFF Rack-Mount Server
SUPPLEMENTAL MATERIAL
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