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hp Integrity cx2600 Site Preparation Guide: Regulatory Model Number: RSVLA-0303-DC > Chapter 2 System Specifications
Environmental Specifications |
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This section provides the temperature/humidity requirements, noise emission, and air flow specifications for the hp Integrity cx2600 Server. Ambient intake air temperature is often different from ambient room temperature; you should measure the operating temperature and humidity directly in front of the cabinet cooling air intakes rather than just checking ambient room conditions. The system is designed to run continuously and meet reliability goals in an ambient temperature of 5°C -40°C at sea level. The maximum allowable temperature is derated 1°C per 1,000 feet of elevation above 5,000 feet above sea level up to 30°C at 10,000 feet. For optimum reliability and performance, the recommended operating range is 20°C to 25°C and 40%-50% relative humidity. To ensure that the system is operating within the published limits, the ambient operation temperature is measured using a sensor placed on the front panel LED status board. Data from the sensor is used to control the fan speed and also to initiate system overtemp shutdown. The system is designed to withstand ambient temperatures between -40°C to 70°C under nonoperating conditions. The cabinet incorporates front to back airflow across the entire chassis. Four 80 mm, dual blade fans, mounted vertically in the front of the chassis, push air through the CPU, memory, and PCI sections. One 80 mm, dual blade fan and the internal power supply fans cool the lower section of the chassis.The five 80 mm fans are controlled by circuits of the fan control board. The fan control circuits receive fan input from the BMC on the system board, and return fan status information. The fan circuit generate power and the pulse-width-modulated control signals to the fans and monitor the speed indicator signals from each of the fans. Fan failures are reported via the front panel diagnostic LEDs and in error messages. Room ambient air temperature is sensed on the front panel LED status board and provided to the system board. Cooling for the processors (CPUs) and memory is provided by three 80 mm fans mounted in the front of the server chassis (fans 2, 3, and 4). Fan 2 is controlled by room ambient air temperature and provides air through the memory section of the chassis. Fans 3 and 4 are controlled by room ambient air temperature and processor (CPU) temperature. These two fans direct airflow across processor 1 (fan 4) and 2 (fan 3). Cooling for the power supplies is provided by the 60 mm fans mounted in each of the power supply assemblies. Air is pushed through the power supply by the 60 mm fans and exhausted out the rear of the chassis. One 80 mm, dual blade fan pushes airflow through the PCI card cage. The fan is controlled by the room ambient temperature and runs at the speed necessary to maintain proper internal temperature throughout the PCI card cage. The system configurations shown in Table 2-5 “Typical Configuration Power Consumption Values” are typical of most systems and show the power and cooling values required for the listed components. These power and cooling values are considered typical and not maximum for the configurations shown. Table 2-5 Typical Configuration Power Consumption Values
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