1. Installing Internal Optional Devices
Express5800/T120h User’s Guide
76
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 8100 Series
2,666MHz
Xeon ® Gold 6100 Series
Xeon ® Gold 5122 Processor
Xeon ® Gold 5100 Series (except Xeon ® Gold 5122 processor)
2,400MHz
Xeon ® Silver 4100 Series
Xeon ® Bronze 3100 Series
2,133MHz
The operation memory speed is decided by rating DIMM speed, DIMM attached on each channel, processor
model and speed selected on System Utility.
Depending on the models of processor, the number of DIMM installed and whether LRDIMM or RDIMM is
installed, the memory clock rate may fall to 1,866 MT/s.
The maximum memory capacity
Maximum memory capacity depends on DIMM capacity, the number of installed DIMM, memory type, and the
number of processors installed.
N code
DIMM type
DIMM rank
Capacity (GB)
1CPU
（
GB
）
2CPU
（
GB
）
N8102-708
RDIMM
Single
8
96
192
N8102-709
RDIMM
Single
16
192
384
N8102-710
RDIMM
Dual
16
192
384
N8102-711
RDIMM
Dual
32
384
768
N8102-712
LRDIMM
Quad
64
768
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