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Table 2-5 Additional Component Power Consumption
Power ConsumptionAdditional Component
443.6 Btu/h130WProcessor
78.4 Btu/h23WSCSI hard disk drive (with I/O access)
54.5 Btu/h16WSCSI hard disk drive (idle)
34.12 Btu/h to 85.30 Btu/h10W to 25WPCI card
Environmental Specifications
This section provides the temperature and humidity requirements, noise emission, and air flow
specifications for the server.
Operating temperature and humidity ranges might vary depending on the installed mass storage
devices. High humidity levels can cause improper disk operation. Low humidity levels can
aggravate static electricity problems and cause excessive wear of the disk surface.
Table 2-6 lists the environmental specifications for a system processing unit with a hard disk
drive.
Table 2-6 Environmental Specifications
ValueParameter
+5 degrees C to +35 degrees C (+40 degrees F to +95 degrees
F)
Operating temperature
–40 degrees C to +70 degrees C (–40 degrees F to +158
degrees F)
Storage temperature
+40 degrees C (+104 degrees F)Over-temperature shutdown
15% to 80% relative (noncondensing)Operating humidity
8% to 85% relative (noncondensing)Storage humidity
Sound power level
1
Acoustic noise emission (ISO 7779)
Pedestal system
LwA = 5.1 BATypical configuration (disk idle)
2
LwA = 5.4 BAMaximum configuration (disk idle)
3
LwA = 6.2 BAMaximum configuration (disk active)
3
Rack system
LwA = 6.4 BATypical configuration (disk idle)
2
LwA = 6.4 BAMaximum configuration (disk idle)
3
LwA = 7.2 BAMaximum configuration (disk active)
3
3048m (10,000 ft.) maxOperating altitude
4600m (15,000 ft.) maxStorage altitude
1 Typical configuration at room temperature (25 degrees C).
2 One processor enabled, one or two SCSI hard disk drives and less than 8 GB of memory.
3 Two dual processors, one or two SCSI hard disk drives and less than 8 GB of memory.
Operating Environment
The system is designed to run continuously and meet reliability goals in an ambient temperature
of 5°C to 35°C (+40°F to +95°F) at sea level. The maximum allowable temperature is de-rated 1°C
44 System Specifications