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 specifications
The Dell EMC PowerEdge R740xd2 system supports up to six high performance cooling fans.
NOTE:
When selecting or upgrading the system configuration, 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 specifications
The Dell EMC PowerEdge R740xd2 system supports CR 2032 3.0-V lithium coin cell system battery.
PCIe Expansion card riser specifications
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 profile right riser
Slot 2
Processor 1
Low Profile
Half Length
x16
Low profile left riser
Slot 3
Processor 2
Low Profile
Half Length
x16
Butterfly riser
Slot 2
Processor 1
Full Height
Half Length
x16
Butterfly riser
Slot 3
Processor 1
Low Profile
Half Length
x8
NOTE:
The expansion-card slots are not hot-swappable.
Technical specifications
179