Expansion card riser specifications
The PowerEdge R860 system supports up to eight PCI express (PCIe) slots Gen5 (6 Full Height and 2 Low Profiles) on the
system board.
Table 13. Expansion card slots supported on the system board
Expansion card riser PCIe slot
Processor
connection
Height Length Slot width
Riser 1B
Slot 1 Processor 1 Full Height Half Length x8 (Gen 4)
Slot 2 Processor 1 Full Height Half Length x8 (Gen 4)
Riser 1C
Slot 1 Processor 3 Full Height Half Length x16
Slot 2 Processor 1 Full Height Half Length x16
Riser 2
Slot 3 Processor 1 Low Profile Half Length x16
Slot 6 Processor 2 Low Profile Half Length x16
Riser 3
Slot 4 Processor 3 Full Height Half Length x16
Slot 5 Processor 4 Full Height Half Length x16
Riser 4B
Slot 7 Processor 2 Full Height Half Length x8 (Gen 4)
Slot 8 Processor 2 Full Height Half Length x8 (Gen 4)
Riser 4C
Slot 7 Processor 4 Full Height Half Length x16
Slot 8 Processor 2 Full Height Half Length x16
Memory specifications
The PowerEdge R860 system supports the following memory specifications for optimized operation.
Table 14. Memory specifications
DIMM type DIMM rank
DIMM
capacity
Dual processor Four processors
Minimum
system
capacity
Maximum system
capacity
Minimum
system
capacity
Maximum system
capacity
DDR5 RDIMM
Single rank 16 GB 32 GB 512 GB 64 GB 1 TB
Dual rank 32 GB 64 GB 1 TB 128 GB 2 TB
Dual rank 64 GB 128 GB 2 TB 256 GB 4 TB
Quad rank 128 GB 256 GB 4 TB 512 GB 8 TB
Octa rank 256 GB 512 GB 8 TB 1 TB 16 TB
NOTE: DDR4 memories are not supported in the R860.
Table 15. Memory module sockets
Memory module sockets Speed
64 (288-pin) 4800 MT/s, or 4400 MT/s
NOTE: The processor may reduce the performance of the rated DIMM speed.
NOTE: Memory DIMM slots are not hot pluggable.
30 Technical specifications