Dell EMC PowerEdge R640, Installation And Service Manual

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PSU Class Heat dissipation
(maximum)
Frequency Voltage
1100 W Mixed Mode
HVDC (for China
and Japan only)
Platinum 4100 BTU/hr 50/60 Hz 100–240 V AC and 200–380 V DC
1100 W AC Platinum 4100 BTU/hr 50/60 Hz 100–240 V AC, autoranging
1600 W AC 6000 BTU/hr 50/60 Hz 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 t o 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 cards and expansion card risers
NOTE: A System Event Log (SEL) event is logged if an expansion card riser is not support ed or missing. It does not
prevent your system from t urning on. However, if a F1/F2 pause occurs and an error message is display ed.
Expansion bus specifications
The PowerEdge R640 system sup ports 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.
Expansion card installation guidelines
Depending on your system configuration, the following PCI Express (PCIe) generation 3 expansion cards are supported:
Table 22. Expansion card riser configurations
Expansion card riser PCIe slots on the riser Processor
connection
Height Length Slot width
Riser 1A Slot 1 Processor 1 Low Profile Half Length x16
Slot 2 Processor 1 Low Profile Half Length x16
Riser 2A Slot 3 Processor 2 Low Profile Half Length x16
Riser 1B Slot 1 Processor 1 Low Profile Half Length x16
Riser 2B Slot 2 Processor 2 Full Height Three-fourth Length x16
Riser 1B Slot 1 Processor 1 Low Profile Half Length x16
NOTE: The expansion card slots are not hot-swappable.
The following table provides guidelines for installing expansion cards to ensure proper cooling and mechanical fit. The expansion cards with
the highest priority should be installed first using the slot priority indicated. All the other expansion cards should be installed in the card
priority and slot priority order.
Technical specifications 33