Product Data Sheet / Brochure

Expansion card riser specifications
The PowerEdge R650xs system supports up to three PCI express (PCIe) Gen 4 expansion cards.
Table 6. Expansion card slots supported on the system board
PCIe slot Riser PCIe slot height PCIe slot length PCIe slot width
Slot 1 Riser 1 Low Profile Half length x16
Slot 2 and 3 Riser 2a Low Profile Half length x8 + x8
Slot 3 Riser 2b (SNAPI) Low Profile Half length x16
Slot 3 Riser 2c Low Profile Half length x16
NOTE: For information on the expansion card installation guidelines, see the system specific Installation and Service
Manual available at https://www.dell.com/poweredgemanuals.
Memory specifications
The PowerEdge R650xs system supports the following memory specifications for optimized operation.
Table 7. Memory specifications
DIMM type DIMM rank
DIMM
capacity
Single processor Dual processors
Minimum DIMM
capacity
Maximum DIMM
capacity
Minimum
DIMM
capacity
Maximum DIMM
capacity
RDIMM
Single rank 8 GB 8 GB 64 GB 16 GB 128 GB
Dual rank
16 GB 16 GB 128 GB 32 GB 256 GB
32 GB 32 GB 256 GB 64 GB 512 GB
64 GB 64 GB 512 GB 128 GB 1 TB
Table 8. Memory module sockets
Memory module sockets Speed
16, 288-pin 3200 MT/s, 2933 MT/s, 2666 MT/s
Storage controller specifications
The PowerEdge R650xs system supports the following controller cards:
Table 9. Storage controller cards
Internal controllers External controllers
● PERC H345
● PERC H355
● PERC H745
● PERC H755
● PERC H755N
● HBA355i
● S150
● Boot Optimized Storage Subsystem (BOSS-S1): HWRAID
2 x M.2 SSDs
● HBA355e
● PERC H840
Technical specifications 9