Intel Pentium 4 Processor in the 423-pin Package Thermal-Mechanical Support Design Guide

Intel® Pentium® 4 Processor in the 423-pin Package Thermal-Mechanical Support Design Guide
Version 1.0
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Direct chassis-attach is one method that has been tested for managing large-mass heat sinks
during mechanical shock and vibration conditions. There may be some chassis,
motherboard, and heatsink combinations in which direct chassis-attach may not eliminate
the damage induced by large motherboard deflections. It is the responsibility of the
supplier, OEM, and system integrator to perform mechanical shock and vibration
validation on all shipped configurations.
Table 2 summarizes the design impacts for the direct chassis-attach solution; the impacts
are detailed in the following sections.
Table 2. Design Summary
Component Design Solution
Motherboard Locate retention mechanism at recommended location
Chassis Add four (4) removable standoffs at recommended locations