Reliability; Environmental; Environmental Specifications - Intel DP55WB - Media Series P55 micro-ATX Core i7 i5 LGA1156 Desktop Motherboard Specification

Intel Desktop Board DP55WB Technical Product Specification
2.7

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 board is
119,790 hours.
2.8

Environmental

Table 27 lists the environmental specifications for the board.
Table 27. Environmental Specifications
Parameter
Temperature
Non-Operating
Operating
Shock
Unpackaged
Packaged
Vibration
Unpackaged
Packaged
56
Specification
-20 °C to +70 °C
0 °C to +55 °C
50 g trapezoidal waveform
Velocity change of 170 inches/second²
Half sine 2 millisecond
Product Weight (pounds)
<20
21-40
41-80
81-100
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)
5 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
Free Fall (inches) Velocity Change (inches/sec²)
36 167
30 152
24 136
18 118