NEC Express5800/R120g-2M, Configuration Manual

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SYSTEM CONFIGURATION GUIDE
–
NEC Express5800/R120g-2M
NEC Corporation Revision 3.0
– October, 2016
17
3 Memory
3.1 Memory Configuration
Refer to the section in accordance with your operating system and memory configuration:

Independent Channel: Refer to 3.1.1

Memory Sparing Configuration: Refer to 3.1.2

Memory Mirroring / Memory Lockstep Configuration: Refer to 3.1.3
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 5/6 physical memory 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.
3.1.1 Independent Channel Configuration
Available slots: 12 per processor
Category Product Name / Description Part Number
Registered DIMM
(RDIMM) 8GB DDR4-2400 REG Memory Kit (2x4GB)
2 x 4GB Registered ECC DIMM, DDR4-2400(PC4-2400)
N8102-663F
16GB DDR4-2400 REG Memory Kit (2x8GB)
2 x 8GB Registered ECC DIMM, DDR4-2400(PC4-2400)
N8102-664F
32GB DDR4-2400 REG Memory Kit (2x16GB)
2 x 16GB Registered ECC DIMM, DDR4-2400(PC4-2400)
N8102-665F
64GB DDR4-2400 REG Memory Kit (2x32GB)
2 x 32GB Registered ECC DIMM, DDR4-2400(PC4-2400)
N8102-666F
TSV Registered DIMM
(TSV RDIMM) 128GB DDR4-2400 TSV REG Memory Kit (2x64GB)
2 x 64GB Registered ECC DIMM, DDR4-2400(PC4-2400)
N8102-667F
NOTE:

Minimum one memory kit per processor must be installed.

It is recommended to install memory kits in multiples of two (four identical DIMMs) for quad-channel
symmetric memory configurations to increase memory transfer speed.

When two processors are installed, balance the DIMMs across the two processors.

Mix configurations of RDIMM and TSV RDIMM are not supported.