Cisco Cisco UCS C210 M1 General-Purpose Rack-Mount Server 데이터 시트

Cisco UCS Cisco UCS C220 M3 High-Density Rack Server (Large Form Factor Hard Disk Drive Model)

CONFIGURING the SERVER

Caveats

■

System speed is dependent on how many DIMMs are populated per channel. See

Table 6

for

details.

■

For optimum performance, do not mix DIMMs with different frequencies. If you mix DIMM
frequencies, the system defaults to the lower frequency.

■

Do not mix RDIMMs, LRDIMMs, or UDIMMs

■

DIMMs for CPU 1 and CPU 2 (when populated) must always be configured identically.

■

The server supports 1 or 2 DIMMs per channel for single- or dual-rank RDIMMs.

■

The server supports 1 or 2 DIMMs per channel for quad-rank LRDIMMs.

■

When using mirroring, DIMMs must be installed in identical pairs across paired DDR3 buses.
That is, mirrored pairs in channels A and B must be identical and pairs in channels C and D
must be identical. However, the DIMMs used in channels A and B and in C and D can be
different.

■

Non-ECC DIMMs are not supported.

■

Memory mirroring reduces the amount of available memory by 50% (quantity of DIMMs must

be even for mirroring).

■

When single- and dual-rank DIMMs are populated for 2DPC, always populate the dual rank
DIMM in the blue DIMM slot, and the single-rank DIMM in the black DIMM slot (only the 4GB
DIMMs are single-rank).

Table 6 DIMM Memory Speeds

DIMM

Speed

DPC

1333-MHz Capable CPU

1600-MHz Capable CPU

1866-MHz Capable CPU

LRDIMM

RDIMM

(DR, SR)

LRDIMM

RDIMM

(DR, SR)

LRDIMM

RDIMM

(DR, SR)

Voltage

1.3 V 1.5 V

1.3 V

1.5 V

1.3 V 1.5 V 1.3 V 1.5 V 1.3 V 1.5 V 1.3 V 1.5 V

1333

DIMM

1DPC

1333

2DPC

1333

1600

DIMM

1DPC

1333

1600

Notes . . .

a. These DIMMs operate at 1333 MHz instead of 1600 MHz when used with any E5-2600 CPUs. They operate at

1600 MHz when used with E5-2600 v2 CPUs that support 1600- and 1866-MHz speeds.

1600

1333

1600

1333

1600

2DPC

1333

1600

1333

1600

1333

1600

1866

DIMM

1DPC

b. NA = not applicable

1333

1600

1866

2DPC

1333

1600

1866