Intel Pentium 4 Processor 423 Pin Socket (PGA423) Design Guidelines

423 Pin Socket Design Guidelines

Vibration test to be performed for two durations:

Duration 1: 10min/axis (derived from Intel

Corporation customary board vibration

specifications).

Power Spectral Density (PSD) Profile: 3.13GRMS.

Figure 19 presents the PSD curves used for the vibration testing.

Sample Size: 9 for contact resistance, 9 for electrical discontinuity.

Input Accelerometer Location: Input (Control) accelerometer to be mounted on the

vibration table.

Socket to be mounted to Micro-ATX motherboard. The mechanical vibration and

shock fixture for the Micro-ATX motherboard is shown in Figure 20. The layout

details of the Micro-ATX motherboard are shown in Figure 21. The board thickness

is 0.062in + 0.008in – 0.005in.

The 423 Pin Socket must meet all the electrical contact resistance requirements

following random vibration test. The socket must be mated with the mechanical

sample outlined in Section 6.8.4 and retained with mechanical supports outlined in

Section 3.1.

Figure 19: Power Spectral Density Curve

0.001

0.01

0.1

1 10 100 1000

Frequency (Hz)

PSD (g^2/Hz)

3.13g RMS (10 minutes)

5 Hz

500 Hz

(5, 0.01)

(20, 0.01)

(500, 0.02)