![Dell EMC PowerEdge R7425 Installation And Service Manual Download Page 29](http://html1.mh-extra.com/html/dell-emc/poweredge-r7425/poweredge-r7425_installation-and-service-manual_2468310029.webp)
System battery specifications
The PowerEdge R7425 system supports CR 2032 3.0-V lithium coin cell system battery.
Expansion card riser specifications
The PowerEdge R7425 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 18. Expansion card riser specifications
PCIe slot
Riser
Processor
connection
Height
Length
Slot width
1
1A
Processor 1
Full height
Full length
x16
1D
Processor 1
Full height
Full length
x16
1E
Processor 1
Full height
Full length
x16
2
1D
Processor 1
Full height
Full length
x8
1E
Processor 1
Full height
Full length
x16
3
1A
Processor 1
Full height
Full length
x16
1D
Processor 1
Full height
Full length
x8
4
2D
Processor 1
Full height
Full length
x16
2A
Processor 2
Full height
Full length
x16
2E
Processor 2
Full height
Full length
x16
5
2D
Processor 2
Full height
Full length
x16
6
2D
Processor 2
Low profile
Half length
x8
2A
Processor 2
Low profile
Half length
x8
2C
Processor 2
Low profile
Half length
x16
2E
Processor 2
Low profile
Half length
x8
7
3A
Processor 2
Full height
Full length
x8
3B
Processor 2
Full height
Full length
x16
8
3A
Processor 2
Full height
Full length
x16
3B
Processor 2
Full height
Full length
x16
Memory specifications
The PowerEdge R7425 system supports up to thirty two 288-pins RDIMMs, and LRDIMMs with speeds of 2666 MT/s, 2400 MT/s, 2133
MT/s, and 1866 MT/s with support for memory optimized operation.
Technical specifications
29