NEC Express5800 User Manual

SYSTEM CONFIGURATION GUIDE – NEC Express5800/R120h-2M
NEC Corporation Revision 5.0 – January 2018 13
3 Memory
3.1 Memory Configuration Feature Comparison
See the table below for feature comparisons of memory configurations supported.
Independent Channel
Memory Sparing
Memory Mirroring
Performance
Best
Better
Good
Data Protection
No
Multiple single bit error
protection
Multiple single bit and multi bit
error protection
Redundancy
No
Partly
Fully
Data Correction
ECC, x4 SDDC
ECC, x4 SDDC
ECC, x4 SDDC
Available Memory
Full physical memory
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
Half physical memory
Available Memory
Channels
6
6
6
Notes
-
All DIMMs in the system must
be identical.
All DIMMs in the system must
be identical.
NOTE:
 Single Rank Memory (N8102-708/-709) does not support Memory Mirroring Mode Configuration Service.
 Refer to “10.2 Memory RAS Settings”
3.2 Memory
Available slots: 12 per processor
Category
Product Name / Description
Part Number
Registered DIMM
(RDIMM)
8GB DDR4-2666 REG Memory Kit (1x8GB/SR)
1 x 8GB Registered ECC DIMM, DDR4-2666(PC4-2666), Single Rank
N8102-708
16GB DDR4-2666 REG Memory Kit (1x16GB/SR)
1 x 16GB Registered ECC DIMM, DDR4-2666(PC4-2666), Single Rank
N8102-709
16GB DDR4-2666 REG Memory Kit (1x16GB/DR)
1 x 16GB Registered ECC DIMM, DDR4-2666(PC4-2666), Dual Rank
N8102-710
32GB DDR4-2666 REG Memory Kit (1x32GB/DR)
1 x 32GB Registered ECC DIMM, DDR4-2666(PC4-2666), Dual Rank
N8102-711
Load Reduced DIMM
(LRDIMM)
64GB DDR4-2666 LR Memory Kit (1x64GB/QR)
1 x 64GB Load Reduced ECC DIMM, DDR4-2666(PC4-2666), Quad Rank
N8102-712
128GB DDR4-2666 LR Memory Kit (1x64GB/OR)
1 x 128GB Load Reduced ECC DIMM, DDR4-2666(PC4-2666), Octal Rank
N8102-713
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. Do NOT mix LRDIMM 64GB with LRDIMM 128GB.
 If you install more than six times N8102-713 128GB DDR4-2666 LR Memory Kit, you require one of the following CPU Processor
codes containing an “M” (N8101-1261/-1262/-1263/-1264/-1265/-1266/-1267/-1268/-1269/-1270/-1271/-1272/-1273/-1274)
 See page 43 for additional memory configuration information
Maximum Memory Speed
See the table below for the actual maximum memory transfer speed. DDR4 memory speed depends on the native memory bus
speed of the processor.
Processor Type
DIMM Speed
Xeon ® Platinum 8100 series
Xeon ® Gold 6100 series
Xeon ® Gold 5122 Processor
2666 MHz

NEC Express5800 Specifications

General

Processor	Intel Xeon
Storage	HDD/SSD
RAID Support	Yes (varies by model)
Power Supply	Redundant PSU options (varies by model)
Form Factor	Rackmount, Tower
Network	Gigabit Ethernet
Operating System Support	Windows Server, Linux