NEC Express5800/R120d-1M, Configuration Manual

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CONFIGURATION GUIDE
–
NEC Express5800R120d-1M
NEC Corporation Revision 7.0
– July 17, 2013
13
Memory Configuration Feature Comparison
See the table below for feature comparisons of memory configurations supported.
Independent
Channel Memory
Sparing Memory
Lockstep Memory
Mirroring
Performance Best Better Better Good
Data Protection
No Multiple single bit
error protection No Multiple single bit
and multi bit error
protection
Redundancy
No Partly No Fully
Data Correction ECC, x4 SDDC ECC, x4 SDDC ECC, x8 SDDC ECC, x4 SDDC
Available Memory Full physical
memory 2/3 physical memory
(2, 4GB DIMM)
5/6 physical memory
(8, 16GB DIMM) Full physical
memory Half physical
memory
Available Memory
Channels 4 4 4 4
Notes - All DIMMs in the
system must be
identical. Paired DIMMs must
be identical. Paired DIMMs must
be identical.
Maximum Memory Speed
See the table below for the actual maximum memory transfer speed in Independent Channel / Memory
Sparing Configuration.
DDR3 memory speed depends on the type of DIMMs, the native memory bus speed of the memory
controller and memory configuration. All memory buses operate at the clock frequency of the DIMM with
the lowest frequency.
The maximum memory transfer rate is 1066 MHz with Memory Sparing Configuration.
Processor
Type
Populated DIMMs
# of DIMMs per
processor
Memory Power
Setting
DIMM Speed
E5-2609 -
- - 1066 MHz
E5-2620 UDIMM (4GB) - Low (1.35V) 1066 MHz
E5-2630L Normal (1.5V) 1333 MHz
E5-2640 RDIMM (2, 4, 8, 16GB) Up to 8 DIMMs - 1333 MHz
10 or more DIMMs - 1066 MHz
LRDIMM (32GB) Up to 8 DIMMs Low (1.35V) 1066 MHz
Normal (1.5V) 1333 MHz
10 or more DIMMs - 1066 MHz
E5-2650L UDIMM (4GB) - Low (1.35V) 1066 MHz
E5-2670 Normal (1.5V) 1333 MHz
E5-2690 RDIMM (2, 4, 8, 16GB) Up to 8 DIMMs Low (1.35V) 1333 MHz
Normal (1.5V) 1600 MHz
10 or more DIMMs - 1066 MHz
LRDIMM (32GB) Up to 8 DIMMs Low (1.35V) 1066 MHz
Normal (1.5V) 1333 MHz
10 or more DIMMs - 1066 MHz