Intel D925XCVLK Product Specification - Page 89
Reliability
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Technical Reference Table 39 provides maximum case temperatures for the Desktop Board D925XCV/D925XBC components that are sensitive to thermal changes. The operating temperature, current load, or operating frequency could affect case temperatures. Maximum case temperatures are important when considering proper airflow to cool the Desktop Board D925XCV/D925XBC. Table 39. Thermal Considerations for Components Component Intel Pentium 4 processor Intel 82925X MCH Intel 82801FR ICH6-R Maximum Case Temperature For processor case temperature, see processor datasheets and processor specification updates 99 oC (under bias) 110 oC (under bias) For information about Intel Pentium 4 processor datasheets and specification updates Refer to Section 1.4, page 19 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 MTBF for the D925XCV and D925XBC boards is 105,577 hours. 89