Mechanical Enabling for the Intel Pentium 4 Processor in the 478-Pin Package

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Critical Design Requirements
Mechanical Requirements
 Withstand environmental load conditions
 50g board-level mechanical shock
 3.13g RMS board-level random vibration
 Driving factors:
 Processor heatsink mass
 Prevalence of surface mount components

Sustain thermal performance
 Provide adequate pre-load for TIM (thermal interface material)
 Center pre-load within specified tolerance