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CONFIGURING the SERVER
Select DIMMs
Select the memory configuration. The available memory DIMMs are listed in
Table 4 Available DDR3 DIMMs
Product ID (PID)
DIMM Options
UCS-MR-1X041RY-A
UCS-MR-1X082RX-A
UCS-MR-1X082RY-A
UCS-MR-1X162RY-A
Memory Mirroring Option
N01-MMIRROR
Approved Configurations
(1) 2-CPU configuration without memory mirroring:
Select from 1 to 6 DIMMs per CPU (2 to 12 DIMMs total). Refer to
■
page
43, for more detailed information.
12
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.
PID Description
4GB DDR3-1600-MHz RDIMM/PC3-12800/1R/x4/1.35v/35nm
8GB DDR3-1333-MHz RDIMM/PC3-10600/2R/x4/1.35v/35nm
8GB DDR3-1600-MHz RDIMM/PC3-12800/2R/x4/1.35v/35nm
16GB DDR3-1600-MHz RDIMM/PC3-12800/2R/x4/1.35v/35nm
Memory mirroring option
Cisco UCS C24 M3 High-Density SFF Rack-Mount Server
Table
4.
Ranks/
Voltage
DIMM
1.35 V
1
1.35 V
2
1.35 V
2
1.35 V
2
Memory Population Rules,
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