CONFIGURATION GUIDE – NEC Express5800/R120g-2E
NEC Corporation Revision 7.0 – August, 2017 14
3.1.1 Independent Channel Configuration
Available slots: 8 per processor
Product Name / Description
4GB DDR4-2400 REG Memory Kit (1x4GB)
1 x 4GB Registered ECC DIMM, DDR4-2400(PC4-2400)
8GB DDR4-2400 REG Memory Kit (1x8GB)
1 x 8GB Registered ECC DIMM, DDR4-2400(PC4-2400)
16GB DDR4-2400 REG Memory Kit (1x16GB)
1 x 16GB Registered ECC DIMM, DDR4-2400(PC4-2400)
32GB DDR4-2400 REG Memory Kit (1x32GB)
1 x 32GB Registered ECC DIMM, DDR4-2400(PC4-2400)
TSV Registered DIMM
(TSV RDIMM)
64GB DDR4-2400 REG Memory Kit (1x64GB)
1 x64GB TSV Registered ECC DIMM, DDR4-2400(PC4-2400)
NOTE:
Minimum one memory kit per processor must be installed.
It is recommended to install memory kits in multiples of four (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.
At least 5 GB of memory is required for VMware ESXi
3.1.2 Memory Sparing Configuration
Available slots: 8 per processor
Product Name / Description
16GB DDR4-2400 REG Memory Kit (2x8GB)
2 x 8GB Registered ECC DIMM, DDR4-2400(PC4-2400)
32GB DDR4-2400 REG Memory Kit (2x16GB)
2 x 16GB Registered ECC DIMM, DDR4-2400(PC4-2400)
NOTE:
Minimum one memory kit per processor must be installed.
The configured memories must be identical.
The logical memory capacity becomes three-fourths of physical capacity.
3.1.3 Memory Mirroring / Memory Lockstep Configuration
Available slots: 8 per processor
Product Name / Description
16GB DDR4-2400 REG Memory Kit (2x8GB)
2 x 8GB Registered ECC DIMM, DDR4-2400(PC4-2400)
32GB DDR4-2400 REG Memory Kit (2x16GB)
2 x 16GB Registered ECC DIMM, DDR4-2400 (PC4-2400)
NOTE:
Minimum one memory kit per processor must be installed.
The logical memory capacity becomes a half of physical capacity on memory mirroring configuration.
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