Intel Xeon Processor with 800 MHz System Bus Thermal/Mechanical Design Guide

68 Intel® Xeon™ Processor with 800 MHz System Bus Thermal/Mechanical Design Guidelines
Quality and Reliability Requirements
D.1.2.3 Shock Test Procedure
Recommended performance requirement for a baseboard:
• Quantity: 3 drops for + and – directions in each of 3 perpendicular axes (i.e. total 18 drops).
• Profile: 50 G trapezoidal waveform, 11 ms duration, 4.32 m/sec minimum velocity change.
• Setup: Mount sample board on test fixture.
Figure D-25. Random Vibration PSD
0.001
0.01
0.1
1 10 100 100
0
Frequenc
y
(
Hz
)
PSD (g^2/Hz)
3.13 GRMS (10 Minutes Per Axis)
5 Hz
500 Hz
(5, 0.01)
(20, 0.02) (500, 0.02)
Figure D-26. Shock Acceleration Curve
0
10
20
30
40
50
60
0 2 4 6 8 10 12
Time (Milliseconds)
Accelration (g)