Intel BOXD865PCDL Product Specification - Page 63

Reliability

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Technical Reference Table 32 provides maximum case temperatures for the Desktop Board D865PCD 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 D865PCD. Table 32. Thermal Considerations for Components Component Intel Pentium 4 processor Intel 82865P MCH Intel 82801EB ICH5 Maximum Case Temperature For processor case temperature, see processor datasheets and processor specification updates 99 oC (under bias) 115 oC (under bias) For information about Intel Pentium 4 processor datasheets and specification updates Refer to Section 1.2, page 15 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 D865PCD MTBF is 101,425 hours. 63

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Technical Reference
63
Table 32 provides maximum case temperatures for the Desktop Board D865PCD 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 D865PCD.
Table 32.
Thermal Considerations for Components
Component
Maximum Case Temperature
Intel Pentium 4 processor
For processor case temperature, see processor datasheets and
processor specification updates
Intel
82865P MCH
99
o
C (under bias)
Intel 82801EB ICH5
115
o
C (under bias)
For information about
Refer to
Intel Pentium 4 processor datasheets and specification updates
Section 1.2, page 15
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
ยบ
C.
The Desktop Board D865PCD MTBF
is 101,425 hours.