Owners Manual

Table 7. Supported NVDIMM-N for quad processor configurations
Configuration Description
Memory population rules
RDIMMs NVDIMM-N
Processor3 {C1, 2, 3, 4, 5, 6}
Processor4 {D1, 2, 3, 4, 5, 6}
Processor2 {B7, 8, 9, 10, 11,
12}
Configuration 14 24x 32 GB RDIMMs, 12x
NVDIMM-Ns
Processor1 {A1, 2, 3, 4, 5, 6},
Processor2 {B1, 2, 3, 4, 5, 6},
Processor3 {C1, 2, 3, 4, 5, 6}
Processor4 {D1, 2, 3, 4, 5, 6}
Processor1 {A7, 8, 9, 10, 11,
12},
Processor2 {B7, 8, 9, 10, 11,
12}
Configuration 15 36x 32 GB RDIMMs, 12x
NVDIMM-Ns
Processor1 {A1, 2, 3, 4, 5, 6},
Processor2 {B1, 2, 3, 4, 5, 6},
Processor3 {C1, 2, 3, 4, 5, 6,
7, 8, 9, 10, 11, 12}
Processor 4 {D1, 2, 3, 4, 5, 6,
7, 8, 9, 10, 11, 12}
Processor1 {A7, 8, 9, 10, 11,
12},
Processor2 {B7, 8, 9, 10, 11,
12}
DCPMM installation guidelines
The following are the recommended guidelines for installing data center persistent memory module (DCPMM) memory modules:
● Each system supports maximum of one DCPMM memory module per channel.
NOTE:
If two different DCPMM capacities are mixed, an F1/F2 warning is displayed as the configuration is not
supported.
● DCPMM can be mixed with RDIMM, LRDIMM, and 3DS LRDIMM.
● Mixing of DDR4 DIMM types (RDIMM, LRDIMM, and 3DS LRDIMM), within channels, for Integrated Memory Controller
(iMC), or across sockets are not supported.
● Mixing of DCPMM operating modes (App Direct, Memory Mode) is not supported.
● If only one DIMM is populated on a channel, it should always go to the first slot in that channel (white slot).
● If a DCPMM and a DDR4 DIMM are populated on the same channel, always plug DCPMM on second slot (black slot).
● If the DCPMM is configured in Memory Mode, the recommended DDR4 to DCPMM capacity ratio is 1:4 to 1:16 per iMC.
● DCPMMs' cannot be mixed with other DCPMMs capacities or NVDIMMs.
● Mixing different capacities of RDIMMs and LRDIMMs are not allowed when DCPMM is installed.
● DCPMMs of different capacities are not allowed.
For more information about the supported DCPMM configurations, see the Dell EMC DCPMM User 's Guide at https://
www.dell.com/support/home/products/server_int/server_int_poweredge.
Table 8. 2 socket DCPMM configurations
No. of
CPUs
in the
Serve
r
DCPM
M
Popul
ation
DRAM
Popul
ation
DRAM
Capac
ity
(GB)
DCPM
M
Capac
ity
(GB)
Operating
system
Memory in
Memory
Mode
(GB)
Total
Memo
ry
(GB)
Total
Memo
ry per
CPU
(GB)
Ratio
DRAM to
Optane
Memory
Requires
an M or L
CPU
Supported
in App
Direct
Mode
Supported
in Memory
Mode
2 128 GB
x 1
16 GB
x 12
192 128 N/A 320 160 1 : 0.7 No Yes No
2 128 GB
x 2
16 GB
x 12
192 256 N/A 448 224 1 : 1.3 No Yes No
2 128 GB
x 4
16 GB
x 8
128 512 512 640 320 1 : 4 No Yes Yes
2 128 GB
x 4
16 GB
x 12
192 512 N/A 704 352 1 : 2.7 No Yes No
2 128 GB
x 8
16 GB
x 12
192 1,024 1,024 1,216 608 1 : 5.3 No Yes Yes
Installing and removing sled components 57