System Battery Specifications; Pcie Riser And Slots; Memory Specifications - Dell EMC PowerEdge R940xa Installation And Service Manual

NOTE: PSUs rated for 1100 W AC or 1100 W Mixed Mode HVDC and higher require high-line voltage (200–240 V AC) to
supply their rated capacity.

System battery specifications

The PowerEdge R940xa system supports CR 2032 3.0-V lithium coin cell system battery.

PCIe riser and slots

The PowerEdge R940xa system supports up to twelve PCI express (PCIe) generation 3 expansion cards that can be installed on the
system board and expansion card risers. The following table provides detailed information about the expansion card riser specifications:
Table 29. PCIe riser and slots specifications
Number of NVMe
processors
NA
NA
4
Front NVMe
Front NVMe
NA
2
NA
NOTE: Use double-wide accelerator capable for installation or removal of Xilinx card.

Memory specifications

.
Table 30. Memory specifications
Memory module DIMM type DIMM
sockets
48 288-pins LRDIMM
LRDIMM
RDIMM
GPU Riser size
X16 PCIe Riser 1
GPU Ready/
Double wide
accelerators
X16 PCIe Riser 2
capable
Non-GPU/ X8 PCIe Riser 1
Single wide
X8 PCIe Riser 2
FPGA
GPU Ready/ X16 PCIe Riser 1
Double wide
X16 PCIe Riser 2
accelerators
capable
Non-GPU/ X8 PCIe Riser 1
Single wide
X8 PCIe Riser 2
FPGA
GPU Ready/ X16 PCIe Riser 1
Double wide
X16 PCIe Riser 2
accelerators
capable
Non-GPU/ X8 PCIe Riser 1
Single wide
X8 PCIe Riser 2
FPGA
DIMM
rank capacity
Octal 128 GB
rank
Quad 64 GB
rank
Dual rank 64 GB
Slot size Slot
quantity
X 16 2
X 8 1
X 16 2
X 8 1
X 8 5
X 8 5
X 16 2
X 16 2
X 8 4
X 8 4
X 16 1
X 16 1
X 8 2
X 8 2
Dual processors
Minimum RAM Maximum RAM Minimum RAM Maximum RAM
256 GB 3072 GB
128 GB 1536 GB
128 GB 1536 GB
Available Height
slots
2,4 FH
5 FH
9,11 FH
12 FH
1,2,3,4,5 FH
8,9,10,11,12 FH
2,4 FH
9,11 FH
1,2,3,4 FH
8,9,10,11 FH
4 FH
11 FH
3,4 FH
10,11 FH
Quad processors
512 GB 6144 GB
256 GB 3072 GB
256 GB 3072 GB
Technical specifications
Length
FL
HL
FL
HL
HL
HL
FL
FL
HL
HL
FL
FL
HL
HL
159