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PSU
Class
1100 W Mixed Mode
Platinum
HVDC (for China
and Japan only)
1100 W AC
Platinum
1600 W AC
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 cards and expansion card risers
NOTE:
A System Event Log (SEL) event is logged if an expansion card riser is not supported or missing. It does not
prevent your system from turning on. However, if a F1/F2 pause occurs and an error message is displayed.
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.
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
Riser 1A
Riser 2A
Riser 1B
Riser 2B
Riser 1B
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.
Heat dissipation
(maximum)
4100 BTU/hr
4100 BTU/hr
6000 BTU/hr
PCIe slots on the riser
Slot 1
Slot 2
Slot 3
Slot 1
Slot 2
Slot 1
Frequency
50/60 Hz
50/60 Hz
50/60 Hz
Processor
Height
connection
Processor 1
Low Profile
Processor 1
Low Profile
Processor 2
Low Profile
Processor 1
Low Profile
Processor 2
Full Height
Processor 1
Low Profile
Voltage
100–240 V AC and 200–380 V DC
100–240 V AC, autoranging
100–240 V AC, autoranging
Length
Half Length
Half Length
Half Length
Half Length
Three-fourth Length
Half Length
Technical specifications
Slot width
x16
x16
x16
x16
x16
x16
33
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