HP Integrity rx7640 and HP 9000 rp7440 Servers User Service Guide

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 14 (page 28) for an
example of the ASHRAE thermal report.
Table 14 Example ASHRAE Thermal Report
Condition
Voltage 208
Volts
Over System DimensionsWeightAirflow,
maximum at
35° C
Airflow,
nominal
Typical Heat
Release
(W x D x H)
mmIncheskglb(m3/hr)cfmWattsDescription
439.17h=17.2987.4192.21631960670Minimum
configuration
444.50w=17.50
762.00d=30.00
439.17h=17.2910022016319602128Full configuration
444.50w=17.50
762.00d=30.00
439.17h=17.29N/AN/A16379601090Typical
configuration
444.50w=17.50
762.00d=30.00
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
Environmental Temperature Sensor
To ensure that the system is operating within the published limits, the ambient operating temperature
is measured using a sensor placed near the chassis inlet, between the cell boards. Data from the
sensor is used to control the fan speed and to initiate system overtemp shutdown.
28 Server Site Preparation