Technical Specifications

System battery specifications
The PowerEdge R550 system supports CR 2032 3.0-V lithium coin cell system battery.
Expansion card riser specifications
The PowerEdge R550 supports up to four PCI express (PCIe) slots (3 Gen4 and 1 Gen3 slots) on the system board.
Table 6. Expansion card slots supported on the system board
PCIe slot Expansion card riser
Processor
connection
Height Length Slot width
Slot 1 N/A Processor 1 Low Profile Half Length x16
Slot 2 N/A PCH Low Profile Half Length x8 (x4-Link)
Slot 5 N/A Processor 2 Low Profile Half Length x16
Slot 6 N/A Processor 2 Low Profile Half Length x16
Memory specifications
The PowerEdge R550 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 2933 MT/s
Storage controller specifications
The PowerEdge R550 system supports the following controller cards:
Table 9. Storage controller cards for the system
Internal controllers External controllers
● S150
● PERC H345
● PERC H745
● PERC H755
● HBA355i
● Boot Optimized Storage Subsystem (BOSS-S2): HWRAID
2 x M.2 SSDs 240 GB or 480 GB
● PERC H840
● HBA355e
Technical specifications 7