Dell PowerEdge R640 EMC PowerEdge R640 Technical Specifications - Page 7

Table 3. PSU specifications (continued) PSU Class Heat dissipation (maximum) 750 W Mixed Mode HVDC (for China only) 2891 BTU/hr 750 W Mixed Mode Platinum DC (for China only) 2902 BTU/hr 1100 W DC Gold 4416 BTU/hr 1100 W Mixed Mode Platinum HVDC (for China and Japan only) 4100 BTU/hr 1100 W AC Platinum 4100 BTU/hr 1600 W AC 6000 BTU/hr Frequency 50/60 Hz 50/60 Hz 50/60 Hz 50/60 Hz 50/60 Hz 50/60 Hz Voltage 100-240 V AC and 240 V DC 240 V DC, 4.5 A -(48-60) V DC 100-240 V AC and 200-380 V DC 100-240 V AC, autoranging 100-240 V AC, autoranging NOTE: If a system with 1100 W AC or HVDC PSU operates from 100 to 120V, the power rating per PSU is derated to 1050 W. NOTE: If a system with 1600 W PSUs operates from 100 to 120 V, then the power rating per PSU is derated to 800 W. NOTE: Heat dissipation is calculated using the PSU wattage rating. NOTE: This system is also designed to connect to the IT power systems with a phase to phase voltage not exceeding 230 V. NOTE: PSUs rated for 1600 W and higher require high-line voltage (200-240 V) to supply their rated capacity. System battery specifications The PowerEdge R640 system supports CR 2032 lithium coin cell system battery. Expansion bus specifications The PowerEdge R640 system supports PCI express (PCIe) generation 3 expansion cards, which are installed on the system, using expansion card risers. This system supports 1A, 2A, 1B, and 2B expansion card risers. NOTE: • The expansion card riser slots are not hot-pluggable. • Internal cable connectors are not hot-pluggable. Memory specifications Table 4. Memory specifications DIMM type DIMM rank DIMM capacity LRDIMM RDIMM Octa rank Quad rank Single rank 512 GB 256 GB 128 GB 64 GB 8 GB Single processor Minimum RAM Maximum RAM 512 GB 6 TB 256 GB 3 TB 128 GB 1.5 TB 64 GB 768 GB 8 GB 96 GB Dual processors Minimum RAM Maximum RAM 1024 GB 12 TB 512 GB 6 TB 256 GB 3 TB 128 GB 1.5 TB 16 GB 192 GB Technical specifications 7