PSU Class Heat
dissipation
(maximum)
Frequency Voltage AC DC Current
High line
100–240 V
Low line
100–120 V
Platinum 2902 BTU/hr NA 240 V DC,
autoranging
NA NA 750 W 4.5 A
NOTE: Heat dissipation is calculated using the PSU wattage rating.
NOTE: This system is also designed to connect to the IT power systems with a phase-to-phase voltage not exceeding 240 V.
Cooling fans specications
The Dell EMC PowerEdge R740xd2 system supports up to six high performance cooling fans.
NOTE: When selecting or upgrading the system conguration, to ensure optimum power utilization, verify the system power
consumption with the Dell Energy Smart Solution Advisor available at Dell.com/ESSA.
Table 23. Dell EMC PowerEdge R740xd2 fan support matrix
Storage PSU type Processor count Fan 1 Fan 2 Fan 3 Fan 4 Fan 5 Fan 6
24+2 x 3.5-
inch or 24 x
3.5-inch.
Redundant
PSUs only
1 Required Required Required Required Required Required
2 Required Required Required Required Required Required
NOTE: Each fan is listed in the systems management software, referenced by the respective fan number. If there is a problem
with a particular fan, you can easily identify and replace the proper fan by noting the fan numbers on the cooling fan assembly.
System battery specications
The Dell EMC PowerEdge R740xd2 system supports CR 2032 3.0-V lithium coin cell system battery.
PCIe Expansion card riser specications
The Dell EMC PowerEdge R740xd2 system supports up to three PCI express (PCIe) generation 3 expansion cards that can be installed on
the system board and expansion card risers..
Table 24. Expansion card slots supported on the system board
Expansion card riser PCIe slots on the riser Processor connection Height Length Slot width
Full height right riser Slot 2 Processor 1 Full Height Half Length x16
Low prole right riser Slot 2 Processor 1 Low Prole Half Length x16
Low prole left riser Slot 3 Processor 2 Low Prole Half Length x16
Buttery riser Slot 2 Processor 1 Full Height Half Length x16
Buttery riser Slot 3 Processor 1 Low Prole Half Length x8
NOTE: The expansion-card slots are not hot-swappable.
Technical specications 179