Intel Desktop Board D945GBO KD945GBOKRPAK10 Manuale Utente

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Intel Desktop Board D945GBO Technical Product Specification 
70 
 
Table 31 provides maximum case temperatures for the 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 board. 
Table 31.  Thermal Considerations for Components 
Component  
Maximum Case Temperature 
Intel Pentium 4 processor 
For processor case temperature, see processor datasheets and 
processor specification updates 
Intel 82945G GMCH  
99 ºC (under bias) 
Intel 82801GH ICH7DH 
110 ºC (under bias, without heatsink) 
99 ºC (under bias, with heatsink) 
 
For information about  
Refer to 
Intel Pentium 4 processor datasheets and specification updates 
2.12 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 D945GBO board is 
108,165 hours.