Riser
PCIe slot on the
expansion card riser
Processor
connection
PCIe slots on riser
(Height)
PCIe slots
on riser
(length)
Link width
Slot width
Riser 3 (IO_RISER3)
Slot 11
Processor 4
full height
3/4 length
x16
x16
Slot 12
Processor 4
full height
half length
x16
x16
Slot 13
Processor 4
full height
half length
x16
x16
Memory specifications
Table 20. Memory specifications
Memory module
sockets
Architecture
Memory capacity
Minimum RAM
Maximum RAM
Twenty four 288-pins
(dual processor)
2667 MT/s, 2400 MT/s, 2133 MT/s
DDR4 RDIMMs or LRDIMMs with
support for advanced ECC or
memory optimized operation
•
8 GB, 16 GB, 32 GB
(single or dual rank)
RDIMMs
•
64 GB, 128 GB
(quad or octal rank)
LRDIMMs
16 GB
3 TB
Forty eight 288-pins
(with quad processor)
32 GB
6 TB
Storage controller specifications
The PowerEdge R940 system supports:
•
Internal storage controller cards: PowerEdge RAID Controller (PERC) H330, PERC H740P, S140 (NVMe drives only), and NVMe PCIe
SSD adapter.
•
External storage controller cards: PERC H840 and 12Gbps SAS HBA.
Remote management port specifications
The PowerEdge R940 system supports one dedicated 1Gbe Ethernet port with optional card and up to two optional shared NIC ports.
Drive specifications
Hard drives
The PowerEdge R940 system supports:
•
Up to twenty four 2.5-inch, internal, hot swappable SAS or SATA SSDs/hard drives
•
Up to eight 2.5-inch internal, hot swappable SAS or SATA SSDs/hard drives
Ports and connectors specifications
USB ports
The PowerEdge R940 system supports:
Technical specifications
27
