Intel D848PMB Technical Product Specification - Page 72
Reliability, 14 Environmental
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Intel Desktop Board D848PMB Technical Product Specification 2.13 Reliability The Mean Time Between Failures (MTBF) prediction is calculated using component and subassembly random failure rates. The calculation is based on the Bellcore Reliability Prediction Procedure, TR-NWT-000332, Issue 4, September 1991. The MTBF prediction is used to estimate repair rates and spare parts requirements. The MTBF data is calculated from predicted data at 55 ºC. The Desktop Board D848PMB MTBF is 149979.68 hours. 2.14 Environmental Table 40 lists the environmental specifications for the Desktop Board D848PMB. Table 40. Desktop Board D848PMB Environmental Specifications Parameter Specification Temperature Non-Operating -40 °C to +70 °C Operating 0 °C to +55 °C Shock Unpackaged 50 g trapezoidal waveform Velocity change of 170 inches/second Packaged Half sine 2 millisecond Product Weight (pounds) Free Fall (inches) Velocity Change (inches/sec)