Dell EMC VxFlex Ready Node R740xd - Chapter 2 Architecture

System battery specifications
The R740xd system supports CR 2032 3.0-V lithium coin cell system batteries.
Expansion bus specifications
The 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 tables provide detailed information about the expansion card
riser specifications:
Table 10 Expansion card riser configuration for R740xd system
Expansion
card riser
PCIe slots on the
riser
Height Length Link
Riser 1A Slot 1 Full Height Full Length x16
Slot 3 Full Height Half Length x16
Riser 2A Slot 4 Full Height Full Length x16
Slot 5 Full Height Full Length x8
Slot 6 Low Profile Half Length x8
Riser 3A Slot 7 Full Height Full Length x8
Slot 8 Full Height Full Length x16
Table 11 Additional expansion card riser configuration for R740xd system
Riser
configuration
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
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
Riser
configuration 9
(1A+2D+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
Technical specifications
R740xd Owner's Guide 25