Dell PowerEdge T640 EMC Technical Specifications - Page 8

Table 4. Supported PCI express generation 3 expansion cards PCIe Slot Processor Connection Height Length 0 (Internal PERC/HBA Slot) Processor 1 Full Height Half Length 1 (Gen3) Processor 1 Full Height Full Length 2 (Gen3) Processor 1 Full Height Full Length 3 (Gen3) Processor 1 Full Height Full Length 4 (Gen3) Processor 2 Full Height Half Length 5 (Gen3) Processor 2 Full Height Full Length 6 (Gen3) Processor 2 Full Height Full Length 7 (Gen3) Processor 2 Full Height Full Length 8 (Gen3) Processor 2 Full Height Full Length Link Width x8 x16 x4 x16 x8 x4 x16 x8 x16 Slot Width x8 x16 x8 x16 x8 x8 x16 x8 x16 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 Table 5. Memory specifications DIMM type DIMM rank DIMM capacity RDIMM LRDIMM Single rank Single rank Dual rank Quad rank Octal rank NVDIMMN Single rank 8 GB 16 GB 32 GB 64 GB 128 GB 16 GB Single processor Minimum RAM Maximum RAM 8 GB 16 GB 16 GB 192 GB 32 GB 384 GB 64 GB 768 GB 128 GB 1536 GB Not supported with single processor Not supported with single processor Dual processors Minimum RAM Maximum RAM 16 GB 192 GB 32 GB 384 GB 64 GB 768 GB 128 GB 1536 GB 256 GB 3072 GB 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. Storage controller specifications The Dell EMC PowerEdge T640 system supports: • Internal controllers: PERC H730P, H740P, HBA330, H330, Software RAID (SWRAID) S140 • External PERC (RAID): H840 • External HBAs (non-RAID): 12 Gbps SAS HBA • Boot Optimized Storage Subsystem: HWRAID 2 x M.2 SSDs 120GB or 240GB 8 Technical specifications