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Dell EMC PowerEdge T640 Technical Specifications

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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 1. Memory specifications. The table below shows the memory specifications for the T640 system:
DIMM type DIMM rank DIMM capacity Single processor Dual processors
Minimum RAM Maximum RAM Minimum RAM Maximum RAM
LRDIMM Quad rank 64 GB 64 GB 768 GB 128 GB 1536 GB
RDIMM Single rank 8 GB 8 GB 96 GB 16 GB 192 GB
Dual rank 16 GB 16 GB 192 GB 32 GB 384 GB
Dual rank 32 GB 32 GB 384 GB 64 GB 768 GB
NVDIMM-N Single rank 16 GB Not supported with single processor Not supported with single processor RDIMM: 192 GB RDIMM: 384 GB
NVDIMM-N: 16 GB NVDIMM-N: 192 GB
  • 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.

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