Reference Guide

Table 6. Memory specifications (continued)

Memory

module

sockets

DIMM

type

DIMM rank

DIMM

capacity

Single processor Dual processors

Minimum

RAM

Maximum

RAM

Minimum RAM Maximum RAM

NA NA DCPMM: 2048

DCPMM: 3072 GB

NA 512 GB NA NA RDIMM: 384 GB RDIMM: 1536 GB

NA NA DCPMM: 4096

DCPMM: 6144 GB

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

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

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

NOTE: DCPMM can be mixed with RDIMMs and LRDIMMs.

NOTE: Mixing of DDR4 DIMM Types (RDIMM, LRDIMM), within channel, integrated memory controller, socket, or across

sockets is not supported.

NOTE: x4 and X8 DDR4 DIMM can be mixed within channel.

NOTE: Mix of Intel Data center persistent memory module operating modes (App Direct, Memory Mode) is not supported

within socket or across sockets.

NOTE: Memory DIMM slots are not hot pluggable.

Storage controller specifications

The PowerEdge R740 system supports:

● Internal storage controller cards: PowerEdge RAID Controller (PERC) H330, PERC H730P, PERC H740P, HBA330, S140, and

Boot Optimized Server Storage (BOSS-S1).

The BOSS card is a simple RAID solution card designed specifically for booting a server's operating system. The card

supports up to two 6 Gbps M.2 SATA drives. The BOSS adapter card has a x8 connector using PCIe gen 2.0 x2 lanes,

available only in the low-profile and half-height form factor.

● External storage controller cards: PERC H840 and 12Gbps SAS HBA.

NOTE: Mini-PERC socket is not hot pluggable.

Drive specifications

Drives

The PowerEdge R740 system supports SAS, SATA, Nearline SAS hard drives or SSDs.

Table 7. Supported drive options for the PowerEdge R740 system

Drives Supported configuration

Eight drives system Up to eight 3.5 inch or 2.5 inch (SAS, SATA or Nearline SAS) front

accessible drives in slots 0 through 7

10 Technical specifications