Dell PowerEdge R640 EMC PowerEdge R640 Installation and Service Manual - Page 95

Table 53. 2 socket DCPMM configurations, Dell EMC DCPMM User 's Guide

Page 95 highlights

• 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 53. 2 socket DCPMM configurations No. of CPUs in the Server DCPMM DRAM Populati Populati on on DRAM Capaci ty (GB) DCPM Operating M system Capacit Memory in y (GB) Memory Mode (GB) 2 128 GB x 16 GB x 192 128 N/A 1 12 Total Memory (GB) Total Memor y per CPU (GB) 320 160 Ratio DRAM to Optane Memory 1 : 0.7 Requi Suppor res an ted in M or App L Direct CPU Mode Support ed in Memory Mode No Yes No 2 128 GB x 16 GB x 192 256 N/A 2 12 448 224 1 : 1.3 No Yes No 2 128 GB x 16 GB x 8 128 512 512 4 640 320 1 : 4 No Yes Yes 2 128 GB x 16 GB x 192 512 N/A 4 12 704 352 1 : 2.7 No Yes No 2 128 GB x 16 GB x 192 1,024 1,024 8 12 1,216 608 1 : 5.3 No Yes Yes 2 128 GB x 16 GB x 192 1,536 1,536 12 12 1,728 864 1 : 8 No Yes Yes 2 128 GB x 32 GB x 384 128 N/A 1 12 512 256 1 : 0.3 No Yes No 2 128 GB x 32 GB x 384 256 N/A 2 12 640 320 1 : 0.7 No Yes No 2 128 GB x 32 GB x 384 512 N/A 4 12 896 448 1 : 1.3 No Yes No 2 128 GB x 32 GB x 384 1,024 N/A 8 12 1,408 704 1 : 2.7 No Yes No 2 128 GB x 32 GB x 384 1,536 1,536 12 12 1,920 960 1 : 4 No Yes Yes 2 128 GB x 64 GB x 768 512 N/A 4 12 1,280 640 1 : 0.7 No Yes No 2 128 GB x 64 GB x 768 1,024 N/A 8 12 1,792 896 1 : 1.3 No Yes No 2 128 GB x 64 GB x 768 1,536 N/A 12 12 2,304 1,152 1 : 2 L SKU Yes No 2 128 GB x 128 GB x 1,536 1,536 N/A 12 12 3,072 1,536 1 : 1 L SKU Yes No 2 512 GB x 32 GB x 384 4,096 4,096 8 12 4,480 2,240 1 : 10.7 L SKU Yes Yes 2 512 GB x 32 GB x 384 6,144 6,144 12 12 6,528 3,264 1 : 16 L SKU Yes Yes Installing and removing system components 95

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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
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