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Table 21. PSU specifications
PSU
Class
495 W AC
Platinum
750 W AC
Platinum
750 W AC
Titanium
750 W Mixed Mode
HVDC (for China
only)
1100 W DC
Gold
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 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.
Memory specifications
Table 22. Memory specifications
DIMM type DIMM rank
LRDIMM
Octa rank
LRDIMM
Quad rank
RDIMM
Single rank
RDIMM
Dual rank
Heat dissipation
(maximum)
1908 BTU/hr
2891 BTU/hr
2843 BTU/hr
2891 BTU/hr
4416 BTU/hr
4100 BTU/hr
4100 BTU/hr
6000 BTU/hr
DIMM
capacity
Minimum RAM
128 GB
128 GB
64 GB
64 GB
8 GB
8 GB
16 GB
16 GB
Frequency
50/60 Hz
50/60 Hz
50/60 Hz
50/60 Hz
50/60 Hz
50/60 Hz
50/60 Hz
50/60 Hz
Single processor
Maximum RAM
1.5 TB
768 GB
96 GB
192 GB
Voltage
100–240 V AC, autoranging
100–240 V AC, autoranging
200–240 V AC, autoranging
100–240 V AC and 240 V DC
–(48–60) V DC
100–240 V AC and 200–380 V DC
100–240 V AC, autoranging
100–240 V AC, autoranging
Dual processors
Minimum RAM
Maximum RAM
256 GB
3 TB
128 GB
1.5 TB
16 GB
192 GB
32 GB
384 GB
Technical specifications
35
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