Table 10. Expansion card slots supported on the system board
Expansion card riser
Riser 1A (R1A) for Intel
GPU configurations
Riser 4A (R4A) for Intel
GPU configurations
Riser 1B (R1B)
for NVIDIA GPU
configurations
Riser 4B (R4B)
for NVIDIA GPU
configurations
Memory specifications
The PowerEdge XE9640 system supports the following memory specifications for optimized operation.
Table 11. Total System Memory Capacity Requirement for Intel GPUs
DIMM capacity
16 x DIMM sockets population
Table 12. Total System Memory Capacity Requirement for NVIDIA GPUs
DIMM
16 GB
capaci
ty
Total
80 GB GPU
memory
8 x
64 GB
Not
DIMM
supported
sockets
populat
ion
16 x
256 GB
Not
DIMM
supported
sockets
populat
ion
32 x
512 GB
Support
DIMM
sockets
populat
ion
Table 13. Memory module sockets
Memory module sockets
●
Only 16 DIMM slots (288-pin) are supported out of
32 DIMMs (with 8 DIMMs per processor) for XE9640
Intel GPU supported systems
●
8 DIMMS, 16 DIMMs and 32 DIMMs (288-pin) for
XE9640 NVIDIA GPU supported systems
24
Technical specifications
Processor
PCIe slot
Connection
1
Processor 1
2
Processor 1
3
Processor 2
4
Processor 2
1
Processor 1
2
Processor 1
3
Processor 2
4
Processor 2
32 GB
94 GB GPU
Total
memor
y
Not
256 GB Not
supported
Not
512GB
supported
Support
1 TB
PCIe slot
height
Full height
Low Profile
Low Profile
Full height
Full height
Low Profile
Low Profile
Full height
64 GB
Total memory: 1 TB
80 GB GPU
94 GB GPU Total
Not
supported
supported
Support
Support
Support
Support
4800 MT/s (1 DIMM Per Channel), 4400 MT/s (2 DIMMs Per
PCIe slot length PCIe slot width
Half length
Half length
Half length
Half length
Half length
Half length
Half length
Half length
64 GB
80 GB GPU 94 GB GPU
memor
y
512 TB
Support
1 TB
Support
2 TB
Support
Speed
Channel)
x16
x16
x16
x16
x16
x16
x16
x16
Support
Support
Support