Memory - Huawei TaiShan 200 Product White Paper

TaiShan 200 Server
White Paper (Model 2180)
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6.2 Memory

Memory Capacity Configuration Rules
The 2180 supports up to 16 DIMMs. Each CPU supports eight memory channels,
and each memory channel supports up to two DIMMs.
Table 6-1 RDIMM configuration rules
Item
Rank
Rated speed (MT/s)
Rated voltage (V)
Operating voltage (V)
Maximum number of DDR4 DIMMs in a server
Maximum capacity per DIMM (GB)
Maximum total memory capacity (GB)
Maximum total memory capacity at maximum
operating speed (GB)
Maximum
operating
speed
(MT/s)
Memory Slot Configuration Rules
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Issue 02 (2020-06-22)
Supports eight DDR controllers.
A maximum of four physical Ethernet ports.
Three PCIe controllers, which support PCIe 4.0 (16 Gbit/s) and are backwards
compatible.
IMU maintenance engine for collecting the CPU status.
One DIMM per channel
Two DIMMs per channel
The 2180 supports a maximum of sixteen DDR4 ECC DIMMs. Each processor
integrates eight memory channels. RDIMMs are supported.
The 2180 supports DIMMs of 16 GB, 32 GB, 64 GB, and 128 GB. When the
2180 is fully configured with DIMMs, the maximum memory capacity is 2048
GB.
In the 2180, the CPU has sixteen DDR4 DIMM slots, integrating eight memory
channels. Table 6-2
shows the DIMM installation positions.
DIMMs of different specifications (such as capacity, bit width, rank, and
height) cannot be mixed on one server. That is, a server must use DIMMs of
the same Part No..
Copyright © Huawei Technologies Co., Ltd.
describes the composition of each channel.
6 Software and Hardware Compatibility
RDIMM
Dual rank
2933
1.2
1.2
16
128
2048
1024
2933
2666
Figure 6-1
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