Cisco UCS C210 M2 General-Purpose Rack-Mount Server
CONFIGURING the SERVER
15
(3) 2-CPU configuration without memory mirroring:
■
Choose from 1 to 6 DIMMs per CPU (from 2 to 12 total DIMMs)
(4) 2-CPU configuration with memory mirroring:
■
Choose 2, 4, 6, or 8 DIMMs per CPU. The DIMMs will be placed by the factory as shown in the
following table:
■
Choose the memory mirroring option (N01-MMIRROR) as shown in
Table 5 on page 14
.
Caveats
■
DIMM voltage:
— You can mix dual voltage DIMMs (operate at either 1.5 V or 1.35 V) and single voltage
DIMMs (operate at only 1.5 V).
— Dual-voltage DIMMs can be operated in either of these modes:
• Power Saving Mode at a maximum speed of 1066 MHz
• Performance Mode at a maximum speed of 1333 MHz
If you mix both types of DIMMs in your configuration, the server forces all DIMMs to
operate in Performance Mode.
■
Memory mirroring:
If you choose the Memory RAS option, be aware that it is available only with an even
number of memory channels. For example, if you choose six DIMMs and select RAS,
Number of
DIMMs
DIMM Placement
(Channels C and F are not used with memory mirroring)
2
CPU 1: 1 DIMM in Channel A
CPU 2: 1 DIMM in Channel D
4
CPU 1: 2 DIMMs in Channel A
CPU 2: 2 DIMMs in Channel D
6
CPU 1:
2 DIMMs in Channel A
1 DIMM in Channel B
CPU 2:
2 DIMMs in Channel D
1 DIMM in Channel E
8
CPU 1:
2 DIMMs in Channel A
2 DIMMs in Channel B
CPU 2:
2 DIMMs in Channel D
2 DIMMs in Channel E
NOTE:
System performance is optimized when the DIMM memory type and the DIMM
quantity is equal for both CPUs.
