Intel DB43LD Product Specification - Page 61
Reliability, Environmental
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Technical Reference For information about Processor datasheets and specification updates Intel B43 Express chipset datasheets, specification updates, and design guides Refer to Section 1.2, page 14 http://www.intel.com/products/chip sets/index.htm 2.7 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 Intel Desktop Board DB43LD MTBF is 132,790 hours. 2.8 Environmental Table 29 lists the environmental specifications for the board. Table 29. Intel Desktop Board DB43LD Environmental Specifications Parameter Specification Temperature Non-Operating Operating -20 °C to +70 °C at 95% humidity 0 °C to +50 °C at 90% humidity Shock Unpackaged 50 g trapezoidal waveform Velocity change of 170 inches/second² Packaged Half sine 2 millisecond Product weight (pounds) Free fall (inches) Velocity change (inches/sec²)