NEC Express5800/R120d-1M Configuration Manual page 13

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