Reference Guide

ManualsBrandsDell ManualsC SeriesPowerEdge MX840c

Table 6. Memory specifications (continued)

DIMM

type

DIMM rank

DIMM

capacity

Dual processors Quad processors

Minimum

RAM

Maximum

RAM

Minimum RAM Maximum RAM

DCPMM

NA 128 GB

RDIMM: 384

LRDIMM: 1536

RDIMM: 384 GB LRDIMM: 3072 GB

DCPMM:

1536 GB

DCPMM: 1536

DCPMM: 248

DCPMM: 3072 GB

NA 256 GB

RDIMM: 192

LRDIMM: 1536

RDIMM: 384 GB LRDIMM: 3072 GB

DCPMM:

2048 GB

DCPMM: 3072

DCPMM: 4096

DCPMM: 6144 GB

NA 512 GB

RDIMM: 384

LRDIMM: 1536

RDIMM: 768 GB LRDIMM: 3072 GB

DCPMM:

4096 GB

DCPMM: 6144

DCPMM: 8192

DCPMM: 12,288 GB

Table 7. Memory module sockets

Memory module sockets Speed

Sixteen 288-pin 2933 MT/s, 2666 MT/s

NOTE: 8 GB RDIMMs and NVDIMM-N must not be mixed.

NOTE: 64 GB LRDIMMs and 128 GB LRDIMMs must not be mixed.

NOTE: Minimum of two processors are required for any configurations that support NVDIMM-N.

NOTE: DCPMM can be mixed with RDIMMs and LRDIMMs.

NOTE: Mix of Intel DCPMM operating modes (App Direct, Memory Mode) is not supported within socket or across sockets.

Drives

Table 8. Supported drive options for the PowerEdge MX840c sled

Drives Specifications

Eight drives Up to eight 2.5 inch (SAS, SATA, Nearline SAS, or NVMe)

front accessible drives in slots 0 to 7.

Dual processor sled NVMe drives are supported in the slots 4 to 7.

NOTE: NVMe is not supported in the slots 0 to 3.

Quad processor sled NVMe drives are supported in the slots 0 to 7.

Six drives Up to six 2.5 inch (SAS, SATA, Nearline SAS, or NVMe) front

accessible drives in slots 0 to 5.

Dual processor sled NVMe drives are supported in the slots 2 to 5.

NOTE: NVMe is not supported in the slots 0 to 1.

Quad processor sled NVMe drives are supported in the slots 0 to 5.

Technical specifications 15