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Chapter 2 Preparations
Memory processor compatibility information
Memory clock frequency
Operating frequency of DDR4 memory varies by processor type and memory configuration.
Please refer to the table below for the actual maximum operating frequency.
CPU brand
Xeon ® Platinum 8200 Series
Xeon ® Gold 6200 Series
Xeon ® Gold 5222 Processor
Xeon ® Gold 5200 Series (except Xeon® Gold 5222 processor)
Xeon ® Silver 4200 Series
Xeon ® Bronze 3200 Series
The operation memory speed is decided by rating DIMM speed, DIMM attached on each channel, processor
model and speed selected on System Utility.
The maximum memory capacity
Maximum memory capacity depends on DIMM capacity, the number of installed DIMM, memory type, and the
number of processors installed.
The maximum memory capacity
N code
DIMM type
N8102-720
RDIMM
N8102-721
RDIMM
N8102-722
RDIMM
N8102-723
RDIMM
N8102-724
RDIMM
N8102-725
LRDIMM
N8102-726
3DS LRDIMM
Maximum available memory capacity depends on the type of processor, see below.
"Processor containing an "M" in the model
Xeon® Platinum 8260M, 8276M, 8280M
Xeon® Gold 5215M, 6238M, 6240M
"Processor containing an "L" in the model
Xeon® Platinum 8280L
Xeon® Gold 5215L, 6238L, 6240L
78
DIMM rank
Capacity (GB)
Single
Single
Dual
Dual
Dual
Quad
Octal
CPU
others
Express5800/R120h-2M (3rd-Gen) User's Guide
1. Installing Internal Optional Devices
Operating frequency driving
voltage 1.2 V
2933MHz
2666MHz
2400MHz
2133MHz
1CPU (GB)
8
96
16
192
16
192
32
384
64
768
64
768
128
1536
Maximum memory capacity per CPU
Up to 2.0TB
Up to 4.5TB
Up to 1.0TB
2CPU (GB)
192
384
384
768
1536
1536
3072
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