Cisco UCS C22 M3 User Manual

Cisco UCS C22 M3 High-Density SFF Rack-Mount Server
CONFIGURING the SERVER
13
Select DIMMs
Select the memory configuration. The available memory DIMMs are listed in Table 4.
Approved Configurations
(1) 1-CPU configuration without memory mirroring:
■ Select from 1 to 6 DIMMs. Refer to Memory Population Rules, page 46, for more detailed
information.
(2) 1-CPU configuration with memory mirroring:
■ Select either 2 or 4 DIMMs. The DIMMs will be placed by the factory as shown in the following
table:
NOTE: When memory mirroring is enabled, the memory subsystem simultaneously
writes identical data to two channels. If a memory read from one of the channels
returns incorrect data due to an uncorrectable memory error, the system
automatically retrieves the data from the other channel. A transient or soft error in
one channel does not affect the mirrored data, and operation continues unless there
is a simultaneous error in exactly the same location on a DIMM and its mirrored
DIMM. Memory mirroring reduces the amount of memory available to the operating
system by 50% because only one of the two populated channels provides data.
Table 4 Available DDR3 DIMMs
Product ID (PID) PID Description Voltage
Ranks/
DIMM
DIMM Options
UCS-MR-1X041RY-A 4GB DDR3-1600-MHz RDIMM/PC3-12800/1R/x4/1.35v/35nm 1.35 V 1
UCS-MR-1X082RX-A 8GB DDR3-1333-MHz RDIMM/PC3-10600/2R/x4/1.35v/35nm 1.35 V 2
UCS-MR-1X082RY-A 8GB DDR3-1600-MHz RDIMM/PC3-12800/2R/x4/1.35v/35nm 1.35 V 2
UCS-MR-1X162RY-A 16GB DDR3-1600-MHz RDIMM/PC3-12800/2R/x4/1.35v/35nm 1.35 V 2
Memory Mirroring Option
N01-MMIRROR Memory mirroring option
Number of
DIMMs
DIMM Placement in Channels
(Channel C is not used with memory mirroring)
2 1 DIMM in Channel A, 1 DIMM in Channel B
4 2 DIMMs in Channel A, 2 DIMMs in Channel B

Cisco UCS C22 M3 Specifications

General

Brand	Cisco
Model	UCS C22 M3
Category	Server
Language	English