SYSTEM CONFIGURATION GUIDE
–
NEC Express5800R120f-1M
NEC Corporation
Revision 6.0
– May 29, 2015
14
3.2.3
Memory Mirroring / Memory Lockstep Configuration
Available slots: 12 per processor
Product Name / Description
Part Number
16GB DDR4-2133 REG Memory Kit (2x8GB)
2 x 8GB Registered ECC DIMM, DDR4-2133(PC4-2133)
N8102-618
32GB DDR4-2133 REG Memory Kit (2x16GB)
2 x 16GB Registered ECC DIMM, DDR4-2133 (PC4-2133)
N8102-619
NOTE:
Minimum one memory kit per processor must be installed.
3.3
Windows Server 2008 Standard
3.3.1
Independent Channel Configuration
Available slots: 1
Product Name / Description
Part Number
4GB DDR4-2133 REG Memory Kit (1x4GB)
1 x 4GB Registered ECC DIMM, DDR4-2133(PC4-2133)
N8102-610
NOTE:
Only one Memory Kit can be installed regardless of the number of processors.
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
(8GB DIMM)
5/6 physical memory
(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.
DDR4 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 1600 MHz with Memory Sparing Configuration.