Intel D925XBC, D925XCV specifications Reliability, Thermal Considerations for Components

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	Maximum Case Temperature
Intel Pentium 4 processor	For processor case temperature, see processor datasheets and
	processor specification updates
Intel 82925X MCH	99 oC (under bias)
Intel 82801FR ICH6-R	110 oC (under bias)
For information about		Refer to
Intel Pentium 4 processor datasheets and specification updates		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.

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