Low-Voltage Dimm Considerations; Raid Summary - Cisco UCS C220 M3 User Manual

SUPPLEMENTAL MATERIAL

Low-Voltage DIMM Considerations

The C220 M3 server can be ordered with dual-voltage (1.5/1.35 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.

RAID Summary

The C220 M3 SFF server has an 8-drive backplane.
ROM5 and ROM55 embedded RAID upgrade options support up to 8 drives
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Mezzanine card (UCSC-RAID-11-C220) supports up to 8 drives
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Mezzanine card (UCSC-RAID-MZ-220) supports up to 8 drives
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SAS 9266-8i and SAS 9266CV-8i PCIe cards support up to 8 drives
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54 Cisco UCS Cisco UCS C220 M3 High-Density Rack Server (Small Form Factor Disk Drive Model)
NOTE: If you do not select a mezzanine card, a plug-in PCIe RAID card, or one of the
embedded RAID upgrade options, you will have an embedded SATA-only RAID
controller that supports up to four SATA-only drives (RAID 0, 1, 10)