Memory - NEC Express5800/R120h-2E System Configuration Manual

SYSTEM CONFIGURATION GUIDE

3 Memory

Available slots: 8 per processor
Category
Registered DIMM
(RDIMM)
Load Reduced DIMM
(LRDIMM)
NOTE:

Minimum one memory kit per processor must be installed.

It is recommended to install memory kits in multiples of 6 identical DIMMs for 6-channel symmetric memory configurations to
increase memory transfer speed.

Mix configurations of RDIMM and LRDIMM are not supported.

See page for additional memory configuration information.
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

Single Rank Memory (N8102-708/-709) does not support Memory Mirroring Mode Configuration Service.

Refer to "Memory RAS Settings"
Maximum Memory Speed
See the table below for the actual maximum memory transfer speed. DDR4 memory speed depends on CPU series.
Processor Type
Xeon ® Gold 6100 Series
Xeon ® Gold 5122 Processor
Xeon ® Gold 5100 Series (Except Xeon ® Gold 5122 Processor)
Xeon ® Silver 4100 Series
Xeon ® Bronze 3100 Series
NEC Corporation
–
NEC Express5800/R120h-2E
Product Name / Description
8GB DDR4-2666 REG Memory Kit (1x8GB/SR)
1 x 8GB Registered ECC DIMM, DDR4-2666(PC4-2666), Single Rank
16GB DDR4-2666 REG Memory Kit (1x16GB/SR)
1 x 16GB Registered ECC DIMM, DDR4-2666(PC4-2666), Single Rank
16GB DDR4-2666 REG Memory Kit (1x16GB/DR)
1 x 16GB Registered ECC DIMM, DDR4-2666(PC4-2666), Dual Rank
32GB DDR4-2666 REG Memory Kit (1x32GB/DR)
1 x 32GB Registered ECC DIMM, DDR4-2666(PC4-2666), Dual Rank
64GB DDR4-2666 LR Memory Kit (1x64GB/QR)
1 x 64GB Load Reduced ECC DIMM, DDR4-2666(PC4-2666), Quad Rank
Independent Channel
Best
No
No
ECC, x4 SDDC
Full physical memory
6
-
Revision 6.0 – January 2019
Memory Sparing
Better
Multiple single bit error
protection
Partly
ECC, x4 SDDC
Two ranks of memory per
channel : Half physical
memory
Four ranks of memory per
channel : 3/4 physical memory
Eight ranks of memory per
channel : 7/8 physical memory
6
All DIMMs in the system must
be identical.
Six DIMMs per processor are
supported, one DIMM is
populated per channel
Part Number
N8102-708
N8102-709
N8102-710
N8102-711
N8102-712
Memory Mirroring
Good
Multiple single bit and multi bit
error protection
Fully
ECC, x4 SDDC
Half physical memory
6
All DIMMs in the system must
be identical.
Two or four DIMMs per
processor are supported,
It is necessary to re-populate
DIMMs after shipment,
please contact your sales
representative for Memory
Mirroring.
DIMM Speed
2666 MHz
2400 MHz
2133 MHz
10