Dell PowerEdge R940 EMC Technical Specifications - Page 8

Table 4. PSU specifications (continued) PSU Class Heat dissipation (maximum) 2400 W AC Platinum 9000 BTU/hr Frequency 50/60 Hz Voltage Power rating Current 200-240 V AC, autoranging 2000 W 100-120 V AC, autoranging derated to 1400 W 16 A 200-240 V AC, autoranging 2400 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 240 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 R940 system supports CR 2032 3.0-V lithium coin cell system battery. Expansion bus specifications The PowerEdge R940 system supports PCI express (PCIe) generation 3 expansion cards, which you can install on the expansion slots available on the system board. If you are using PowerEdge R940 system with four processor configuration, then you can also install the cards by using the expansion card riser. This system supports up to two expansion card risers. The following table provides the expansion card riser specifications: Table 5. Expansion card slots supported on the system board PCIe slot on the system board Slot 1 Processor connection Processor 1 PCIe slots on system board (Height) full height PCIe slots on system board (length) half length x8 Link width Slot width x16 Slot 2 Processor 1 full height half length x16 x16 Slot 3 Processor 1 full height half length x16 x16 Slot 4 Processor 2 full height half length x16 x16 Slot 5 Processor 2 full height half length x8 x16 Slot 6 Processor 2 full height half length x8 x16 Slot 7 Processor 2 full height half length x16 x16 Table 6. Expansion card riser configurations Riser PCIe slot on the expansion card riser Processor connection PCIe slots on riser (Height) Riser 2 (IO_RISER2) Slot 8 Slot 9 Slot 10 Processor 3 Processor 3 Processor 3 full height full height full height Riser 3 (IO_RISER3) Slot 11 Slot 12 Slot 13 Processor 4 Processor 4 Processor 4 full height full height full height PCIe slots on riser (length) 3/4 length half length half length 3/4 length half length half length Link width x16 x16 x16 x16 x16 x16 Slot width x16 x16 x16 x16 x16 x16 8 PowerEdge R940 technical specifications