Dell EMC PowerEdge R740 - Expansion Card Installation Guidelines

Expansion card installation guidelines
The PowerEdge R740 system supports up to eight PCI express (PCIe) generation 3 expansion cards, that can be installed on the system
board using expansion card risers. The following table provides detailed information about the expansion card riser specications:
Table 42. Expansion card riser specications
Riser
conguration
and supported
risers
Slot description PCIe slots on
riser 1 (Height
and length)
Processor
connection
PCIe slots on riser
2 (Height and
length)
Processor
connection
PCIe slots on
riser 3 (Height
and length)
Processor
connection
Riser
conguration 0
(No riser)
No PCIe slots
(only rear
storage)
N/A N/A N/A N/A N/A N/A
Riser
conguration 1
(1B+2B)
Four x8 slots
Slot 1: x8 full-
height, full length
Processor 1
Slot 4: x8 low
prole, half length
Processor 1 N/A N/A
Slot 2: x8 full-
height, full length
Processor 1
Slot 3: x8 full-
height, half length
Processor 1
Riser
conguration 2
(1B+2C)
Three x8 and
one x16 slots
Slot 1: x8 full-
height, full length
Processor 1
Slot 4: x16 low
prole, half length
Processor 2 N/A N/A
Slot 2: x8 full-
height, full length
Processor 1
Slot 3: x8 full-
height, half length
Processor 1
Riser
conguration 3
(1A+2A)
Two x8 and
three x16 slots
Slot 1: x16 full-
height, full length
Processor 1 Slot 4: x16 full-
height, full length
Processor 2
N/A N/A
N/A N/A Slot 5: x8 full-
height, full length
Processor 2
Slot 3: x16 full-
height, half length
Processor 1 Slot 6: x8 low
prole, half length
Processor 1
Riser
conguration 4
(1A+2A+3A)
Three x8 and
four x16 slots
Slot 1: x16 full-
height, full length
Processor 1 Slot 4: x16 full-
height, full length
Processor 2 Slot 7: x8 full-
height, full length
Processor
2
N/A N/A Slot 5: x8 full-
height, full length
Processor 2 Slot 8: x16 full-
height, full length
Processor
2
Slot 3: x16 full-
height, half length
Processor 1 Slot 6: x8 low
prole, half length
Processor 1
Riser
conguration 5
(1B+2A+3A)
Six x8 and two
x16 slots
Slot 1: x8 full-
height, full length
Processor 1 Slot 4: x16 full-
height, full length
Processor 2 Slot 7: x8 full-
height, full length
Processor
2
Slot 2: x8 full-
height, full length
Processor 1 Slot 5: x8 full-
height, full length
Processor 2 Slot 8: x16 full-
height, full length
Processor
2
Slot 3: x8 full-
height, half length
Processor 1 Slot 6: x8 low
prole, half length
Processor 1
Dell EMC PowerEdge R740 Installation and Service Manual
Installing and removing system components
103