HP Integrity rx8640 Site Preparation Guide, Fourth Edition - HP Integrity rx86 - Page 37

Note 3: User Expected Maximum Power: (Input power at the ac input expressed in Watts and Volt-Amps.) The measured maximum worst case power consumption. This number represents the largest 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. Environmental Specifications This section provides the environmental, power dissipation, noise emission, and air flow 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° C-32° 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° C to 25° C. This meets or exceeds the requirements for Class 2 in the corporate and ASHRAE standard. See Table 2-9 (page 37) for an example of the ASHRAE thermal report. Table 2-9 Example ASHRAE Thermal Report Description Minimum configuration Condition Voltage 208 Volts Typical Heat Release Watts 971 Airflow, nominal cfm 960 Airflow, maximum at 32° C (m3/hr) 1631 Weight lb kg 178 81 Over System Dimensions (W x D x H) Inches h=29.55 w=17.50 d=30.00 mm 750.57 444.50 762.00 Full configuration 3883 960 1631 370 168 h=29.55 w=17.50 d=30.00 750.57 444.50 762.00 Typical configuration 2380 960 1631 286 130 h=29.55 w=17.50 d=30.00 750.57 444.50 762.00 Environmental Specifications 37