Expansion Bus Specifications; Memory Specifications; Storage Controller Specifications - Dell EMC PowerEdge T640 Installation And Service Manual

Expansion bus specifications

The PowerEdge T640 system supports PCI express (PCIe) generation 3 and 2 expansion cards. The following table describes the
supported expansion cards:
Table 15. Supported PCI express generation 3 expansion cards
PCIe Slot Processor Connection
0 (Internal Processor 1
PERC/HBA Slot)
1 (Gen3) Processor 1
2 (Gen3) Processor 1
3 (Gen3) Processor 1
4 (Gen3) Processor 2
5 (Gen3) Processor 2
6 (Gen3) Processor 2
7 (Gen3) Processor 2
8 (Gen3) Processor 2
NOTE: To use PCIe slots 4, 5, 6, 7, and 8 both the processors must be installed.
NOTE: The expansion card slots are not hot-swappable.

Memory specifications

The T640 system supports up to twenty four 288-pins RDIMMS/LRDIMMS or twelve RDIMMS/LRDIMMS and twelve NVDIMM-Ns with
speeds of 2666 MT/s, 2400 MT/s and 2133 MT/s with support for memory optimized operation.
Table 16. Memory specifications
DIMM
DIMM rank
type
LRDIMM Quad rank
Single rank
RDIMM Dual rank
Dual rank
NVDIMM-
Single rank
N
NOTE: 8 GB RDIMMs and NVDIMM-N must not be mixed.
NOTE: A minimum of two processors are required for any configuration that supports NVDIMM-N DIMMs.

Storage controller specifications

The T640 system supports:
30 Technical specifications
Height
Full Height
Full Height
Full Height
Full Height
Full Height
Full Height
Full Height
Full Height
Full Height
DIMM capacity
Minimum RAM
64 GB 64 GB
8 GB 8 GB
16 GB 16 GB
32 GB 32 GB
Not supported with
16 GB
single processor
Length
Half Length
Full Length
Full Length
Full Length
Half Length
Full Length
Full Length
Full Length
Full Length
Single processor
Maximum RAM
768 GB
96 GB
192 GB
384 GB
Not supported with
single processor
Link Width Slot Width
x8 x8
x16 x16
x4 x8
x16 x16
x8 x8
x4 x8
x16 x16
x8 x8
x16 x16
Dual processors
Minimum RAM Maximum RAM
128 GB 1536 GB
16 GB 192 GB
32 GB 384 GB
64 GB 768 GB
RDIMM: 192 GB RDIMM: 384 GB
NVDIMM-N: 16 NVDIMM-N: 192 GB
GB