Intel Desktop Board D915GLVG Technical Product Specification 
62   
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
 
82915GL GMCH   99 
o
C (under bias) 
Intel 82801FB ICH6  110 
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 ºC.  The MTBF for the D915GLVG board is 
125,355 hours.