Memory specifications
The Dell EMC PowerEdge R740xd2 system supports 16 DDR4 registered DIMM (RDIMMs) slots. Supported memory bus frequencies are
1866 MT/s, 2133 MT/s, 2400 MT/s, and 2666 MT/s.
Table 25. Memory specifications
DIMM type
DIMM rank
DIMM capacity
Single processor
Dual processors
Minimum RAM
Maximum RAM
Minimum RAM
Maximum RAM
RDIMM
Single rank
8 GB
8 GB
80 GB
16 GB
128 GB
Dual rank
16 GB
16 GB
160 GB
32 GB
256 GB
Dual rank
32 GB
32 GB
320 GB
64 GB
512 GB
Storage controller specifications
The PowerEdge R740xd2 system supports the following controller cards.
Table 26. Dell EMC PowerEdge R740xd2 system controller cards
Internal controllers
External controllers
•
PERC H730P
•
PERC H330
•
HBA330
•
S140
•
12 Gbps SAS HBA
•
PERC H840
Drives
The Dell EMC PowerEdge R740xd2 system supports:
Table 27. Drive specification
Chassis options
Configurations
Twenty-four drive chassis
Up to twenty-four 3.5-inch (SATA or Nearline SAS drives) front accessible drives in slots
0 through 23 and
Up to eight 2.5-inch (SAS, SATA SSDs) front accessible drives can be installed from slots
16 through 23.
Twenty-four front + two rear drive chassis
Up to twenty-four 3.5 inch (SATA or Nearline SAS drives) front accessible drives in slots
0 through 23 and up to two 3.5-inch SAS/SATA rear accessible drives.
NOTE:
For single PERC configuration, it is slot 24 to slot 25. For dual PERC
configuration including S140 software RAID, it is slot 0 to slot 1.
NOTE:
2.5-inch drives in 3.5-inch carriers are supported for SAS, and SATA SSD drives.
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Technical specifications
