•
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
support/home/products/server_int/server_int_poweredge
Table 53. 2 socket DCPMM configurations
No. of
CPUs
in the
Server
DCPMM
Populati
on
DRAM
Populati
on
DRAM
Capaci
ty
(GB)
DCPM
M
Capacit
y (GB)
Operating
system
Memory in
Memory
Mode (GB)
Total
Memory
(GB)
Total
Memor
y per
CPU
(GB)
Ratio
DRAM to
Optane
Memory
Requi
res an
M or
L
CPU
Suppor
ted in
App
Direct
Mode
Support
ed 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
2
128 GB x
12
16 GB x
12
192
1,536
1,536
1,728
864
1 : 8
No
Yes
Yes
2
128 GB x
1
32 GB x
12
384
128
N/A
512
256
1 : 0.3
No
Yes
No
2
128 GB x
2
32 GB x
12
384
256
N/A
640
320
1 : 0.7
No
Yes
No
2
128 GB x
4
32 GB x
12
384
512
N/A
896
448
1 : 1.3
No
Yes
No
2
128 GB x
8
32 GB x
12
384
1,024
N/A
1,408
704
1 : 2.7
No
Yes
No
2
128 GB x
12
32 GB x
12
384
1,536
1,536
1,920
960
1 : 4
No
Yes
Yes
2
128 GB x
4
64 GB x
12
768
512
N/A
1,280
640
1 : 0.7
No
Yes
No
2
128 GB x
8
64 GB x
12
768
1,024
N/A
1,792
896
1 : 1.3
No
Yes
No
2
128 GB x
12
64 GB x
12
768
1,536
N/A
2,304
1,152
1 : 2
L SKU Yes
No
2
128 GB x
12
128 GB x
12
1,536
1,536
N/A
3,072
1,536
1 : 1
L SKU Yes
No
2
512 GB x
8
32 GB x
12
384
4,096
4,096
4,480
2,240
1 : 10.7
L SKU Yes
Yes
2
512 GB x
12
32 GB x
12
384
6,144
6,144
6,528
3,264
1 : 16
L SKU Yes
Yes
Installing and removing system components
95