Dell PowerEdge R840 EMC Technical Specifications - Page 18

Figure 18. 24 x 2.5-inch drive system Figure 19. 24 x 2.5-inch + 2 x 2.5-inch (rear) drive system The following table provides detailed information about the expansion card riser specifications: Table 5. Expansion card riser specifications PCIe slot 1 Riser X8 PCIe Riser 1 Processor connection Processor 1 Height Full height 2 X16 PCIe Riser 1 Processor 1 Full height X8 PCIe Riser 1 Processor 1 Full height 3 On the system board Processor 1 Low profile 4 On the system board Processor 2 Low profile 5 X8 PCIe Riser 2 Processor 2 Full height 6 X16 PCIe Riser 2 Processor 2 Full height X8 PCIe Riser 2 Processor 2 Full height Length Half length Full length Half length Half length Half length Half length Full length Half length Slot width x8 x16 x8 x16 x16 x8 x16 x8 Memory specifications . Table 6. Memory specifications Memory module sockets DIMM type DIMM rank 48 288-pins LRDIMM Octal rank DIMM capacity 128 GB Dual processors Quad processors Minimum RAM Maximum RAM Minimum RAM Maximum RAM 256 GB 3072 GB 512 GB 6144 GB 18 Technical specifications