Mode-Specific Guidelines - Dell EMC E39S Series Installation And Service Manual

Table 53. 2 socket DCPMM configurations (continued)
No. of DCPMM DRAM
CPUs Populati Populati
in the on on
Server
2 512 GB x 64 GB x
8 12
2 512 GB x 64 GB x
12 12
2 512 GB x 128 GB x
12 12
2 256 GB x 16 GB x
8 12
2 256 GB x 32 GB x
8 12
2 256 GB x 32 GB x
12 12
2 256 GB x 64 GB x
8 12
2 256 GB x 64 GB x
12 12
2 256 GB x 128 GB x
12 12
NOTE: There are limited configurations available for Dual Socket Servers with only one CPU populated.
NOTE: DCPMM is supported on systems with 1600W and 2400W PSU configuration.
NOTE:
• High Performance Fan is required with DCPMM.
• GPU and FGPA cards are not supported.
• Mid or rear storage is not supported.
• Front 12 x 3.5-inch drives are not supported.

Mode-specific guidelines

The configurations allowed depend on the memory mode selected in the System BIOS.
Table 54. Memory operating modes
Memory Operating Mode
Optimizer Mode
Mirror Mode
96 Installing and removing system components
DRAM DCPM Operating
Capaci M system
ty Capacit Memory in
(GB) y (GB) Memory
Mode (GB)
768 4,096 4,096
768 6,144 6,144
1,536 6,144 6,144
192 2,048 2,048
384 2,048 2,048
384 3,072 3,072
768 2,048 N/A
768 3,072 3,072
1,536 3,072 N/A
Total Total Ratio
Memory Memor DRAM to
(GB) y per Optane
CPU Memory
(GB)
4,864 2,432 1 : 5.3
6,912 3,456 1 : 8
7,680 3,840 1 : 4
2,240 1,120 1 : 10.7
2,432 1,216 1 : 5.3
3,456 1,728 1 : 8
2,816 1,408 1 : 2.7
3,840 1,920 1 : 4
4,608 2,304 1 : 2
Description
The Optimizer Mode if enabled, the DRAM controllers operate
independently in the 64-bit mode and provide optimized memory
performance.
NOTE: DCPMM supports only Optimizer mode.
The Mirror Mode if enabled, the system maintains two identical
copies of data in memory, and the total available system memory is
one half of the total installed physical memory. Half of the installed
memory is used to mirror the active memory modules. This feature
provides maximum reliability and enables the system to continue
running even during a catastrophic memory failure by switching
over to the mirrored copy. The installation guidelines to enable
Requi Suppor Support
res an ted in ed in
M or App Memory
L Direct Mode
CPU Mode
L SKU Yes Yes
L SKU Yes Yes
L SKU Yes Yes
L SKU Yes Yes
L SKU Yes Yes
L SKU Yes Yes
L SKU Yes No
L SKU Yes Yes
L SKU Yes No