Dell EMC PowerEdge R740xd - Expansion Cards and Expansion Card Risers; Expansion Card Installation Guidelines

NOTE: If applicable, open the PCIe card holder latch on the air shroud to install the full length card.
3. Follow the procedure listed in After working inside your system.
Expansion cards and expansion card risers
Expansion card installation guidelines
NOTE: A System Event Log (SEL) event is logged if an expansion card riser is not supported or missing. It does not
prevent your system from turning on. However, if a F1/F2 pause occurs and an error message is displayed.
The PowerEdge R740xd 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 specifications:
Table 55. Expansion card riser specifications
Riser
configuration
and supported
risers
Slot
description
PCIe slots on
riser 1 (Height
and length)
Processor
connectio
n
PCIe slots on
riser 2 (Height
and length)
Processor
connectio
n
PCIe slots on
riser 3 (Height
and length)
Processo
r
connectio
n
Riser
configuration 0
with or without
rear storage (No
riser)
No PCIe slots
(only rear
storage)
N/A N/A N/A N/A N/A N/A
Riser
configuration 1
with or without
rear storage (1B
+2B)
Four x8 slots
and rear storage
Slot 1: x8 full-
height, full length
Processor 1
Slot 4: x8 low
profile, 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
configuration 2
with or without
rear storage (1B
+2C)
Three x8 and
one x16 slots
and rear storage
Slot 1: x8 full-
height, full length
Processor 1
Slot 4: x16 low
profile, 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
configuration 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
profile, half length
Processor 1
Riser
configuration 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
profile, half length
Processor 1
Installing and removing system components 133