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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2. Thermal-Mechanical Support Solution
Intel’s reference thermal-mechanical support solution for the Intel® Pentium® 4 processor
consists of:
?? Heatsink
?? Heatsink clips
?? Thermal interface material
?? Retention mechanism(s)
?? Chassis standoffs
Large-mass heatsinks on ATX form factor motherboards may cause excessive board
deflection during shipping and handling and may cause damage to board-level components.
Direct-attach of the retention mechanism to the chassis wall, as shown in Figure 1, is
recommended for all Intel® Pentium® 4 processor system solutions.
Figure 1. Direct Chassis-Attach Example
Retention Mechanism
(two-piece enabled-
solution shown as
example)