Intel Desktop Board D865GBF BLKD865GBF 사용자 설명서

92 

 

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.  Table 46 lists the MTBF calculations. 

Desktop Board D865GBF with 10/100 Mbits/sec LAN subsystem 95,027 hours 

Desktop Board D865GBF with Gigabit (10/100/1000 Mbits/sec) LAN subsystem 94,621 hours 

Desktop Board D865GLC with 10/100 Mbits/sec LAN subsystem 99,447 hours 

Desktop Board D865GLC with Gigabit (10/100/1000 Mbits/sec) LAN subsystem 97,390 hours 

 

 Non-Operating  -40 

°

C to +70 

°

C 

 Operating 

0 

°

C to +55 

°

C  

 

 

Unpackaged 

50 g trapezoidal waveform 

 

Velocity change of 170 inches/second 

 

Packaged 

Half sine 2 millisecond 

 

Product Weight (pounds) 

Free Fall (inches) 

Velocity Change (inches/sec) 

 <20 

36 

167 

 21-40 

30 

152 

 41-80 

24 

136 

 81-100 

18 

118 

 

 

Unpackaged 

5 Hz to 20 Hz:  0.01 g² Hz sloping up to 0.02 g² Hz 

 

20 Hz to 500 Hz:  0.02 g² Hz (flat) 

 

Packaged 

10 Hz to 40 Hz:  0.015 g² Hz (flat) 

 

40 Hz to 500 Hz:  0.015 g² Hz sloping down to 0.00015 g² Hz