Specifications

Figure 18. Power inputs and interconnects in the HP 9000 rp8440 Server are designed for fault-tolerant power compliance.
AC power consumption
The power consumption of the HP 9000 rp7440 and rp8440 Servers varies greatly, depending on
the hardware configuration and the input line voltages supplied at your site. HP represents power
consumption in terms of volt-amperes (VA) to take into account power factor correction.
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Maximum Theoretical Power or Maximum Configuration—The calculated sum of the maximum
worst case power consumption for every subsystem in the server. This number is not exceeded by a
functioning server for any combination of hardware and software under any conditions.
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Marked Electrical Power—The server Marked Electrical Power is the rating given on the chassis
label and represents the input power required for facility AC power planning and wiring
requirements. This number represents the expected maximum power consumption for the server
based on the power rating of the bulk power supplies. Also, this number can safely be used to size
AC circuits and breakers for the system under all conditions.
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Typical Maximum Power, User Expected Maximum Power, or Typical Configuration—The measured
maximum worst case power consumption. This number represents the larges power consumption
that HP engineers were able to produce for the server with any combination of hardware under
laboratory conditions using aggressive software applications designed specifically to work the
system at maximum load. This number can safely be used to compute thermal loads and power
consumption for the system under all conditions.
Power numbers per configuration are shown below. For more detail information on power
consumption details for these servers, please refer to the HP 9000 rp7440 or rp8440 Server
Installation guide at
http://docs.hp.com.
Typical value represents the expected power consumption of a given configuration. The typical value
is the approximate power consumption that you most likely experience. It can be used for power
budgeting purposes.
Following are the typical power consumption values for two different configurations of each server.
HP 9000 rp7440 Server fully loaded configuration with eight PA-8900 processors—Consists of eight
1.068-GHz PA-8900 processors, 64 GB of memory, 14 PCI-X cards, two cell boards, four internal
hard drives, one DVD drive, two core I/O card sets, and two bulk power supplies.
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