1. Installing Internal Optional Devices
Express5800/R120h-2M (2nd-Gen) User’s Guide
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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
Operating frequency driving
voltage 1.2 V
Xeon ® Platinum 8200 Series
2933MHz
Xeon ® Gold 6200 Series
Xeon ® Gold 5222 Processor
Xeon ® Gold 5200 Series (except Xeon® Gold 5222 processor)
2667MHz
Xeon ® Silver 4200 Series
2400MHz
Xeon ® Bronze 3200 Series
2133MHz
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
DIMM rank
Capacity (GB)
1CPU (GB)
2CPU (GB)
N8102-720 RDIMM
Single
8
96
192
N8102-721 RDIMM
Single
16
192
384
N8102-722 RDIMM
Dual
16
192
384
N8102-723 RDIMM
Dual
32
384
768
N8102-724 RDIMM
Dual
64
768
1536
N8102-725 LRDIMM
Quad
64
768
1536
N8102-726 3DS
LRDIMM Octal
128
1536
3072