FusionServer 1288H V5 Server
Technical White Paper
5 Hardware Description
2023-02-28
34
Item
Specifications
Capacity per DCPMM (GB)
128
256
512
Rated speed (MT/s)
2666
2666
2666
Operating voltage (V)
1.2
1.2
1.2
Maximum number of DCPMMs
in a server
a
12
12
12
Maximum capacity of the server
(GB)
b
2304
4608
7680
Maximum operating speed
(MT/s)
2666
2666
2666
⚫
a: The maximum number of DCPMMs is based on dual-processor configuration.
The value is halved for a server with only one processor.
⚫
b: The maximum memory capacity varies depending on the CPU type and
DCPMM working mode. The value listed in this table is based on the assumption
that 12 DCPMMs and 12 DDR4 memory modules are used with the L series
CPUs and the DCPMMs work in AD mode.
⚫
The information listed in this table is for reference only. For details, consult the
local sales representative.
5.4.2.4 DIMM Installation Rules
⚫
The following are general guidelines for DCPMM installation:
−
The DDR4 memory modules used with the DCPMMs include RDIMMs and
LRDIMMs.
−
The DCPMMs used in a server must have the same part number (P/N code).
−
The DDR4 memory modules used with the DCPMMs in a server must have
the same P/N code.
⚫
Observe the following when configuring DCPMMs in specific operating mode:
MM mode:
On the same server, it is recommended that the ratio of FM to NM be 2:1 to 16:1.
⚫
Near memory (NM): capacity of DDR4 DIMMs used as the cache.
⚫
Far memory (FM): capacity of the DCPMMs in MM.
⚫
The mapping between the DCPMM and CPU is as follows:
−
DCPMMs require Cascade Lake Gold/Platinum/Silver (4215 model) CPUs.
−
Table 5-9 lists the maximum memory capacity supported by different CPUs.
Table 5-9
Maximum memory capacity supported by a CPU
CPU Type
Maximum Memory Capacity Supported by a CPU (DDR4 and
DCPMM Capacities)
Full-series
1 TB
