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.
Environmental Specifications
This section provides the environmental, power dissipation, noise emission, and airflow
specifications for the server.
Temperature and Humidity
The cabinet is actively cooled using forced convection in a Class C1-modified environment. The
recommended humidity level for Class C1 is 40 to 55% relative humidity (RH).
Operating Environment
The system is designed to run continuously and meet reliability goals in an ambient temperature
of 5° to 35° C at sea level. The maximum allowable temperature is derated 1° C per 1,000 feet of
elevation above 3,000 feet above sea level up to 25° C at 10,000 feet. For optimum reliability and
performance, the recommended operating range is 20° to 25° C. This meets or exceeds the
requirements for Class 2 in the corporate and ASHRAE standard. See Table 2-8 (page 38) for an
example of the ASHRAE thermal report.
Table 2-8 Example ASHRAE Thermal Report
Condition
Voltage 208
Volts
Over System Dimensions
(W x D x H)
WeightAirflow,
maximum at
35° C
Airflow,
nominal
Typical Heat
Release
mmIncheskglb(m3/hr)cfmWattsDescription
439.17
444.50
762.00
h=17.29
w=17.50
d=30.00
87.4192.21631960670Minimum
configuration
439.17
444.50
762.00
h=17.29
w=17.50
d=30.00
10022016319602128Full
configuration
439.17
444.50
762.00
h=17.29
w=17.50
d=30.00
N/AN/A16379601090Typical
configuration
1 cell board, 2 CPUs, 2 GB, 1 core I/O
card
Minimum configurationASHRAE class
2 cell boards, 8 CPUs, 64 GB, 2 core I/O
cards
Full configuration
1 cell board, 4 CPUs, 32 GB, 1 core I/O
card, 8 I/O cards, 2 hard drives
Typical configuration
38 Server Site Preparation
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