Intel 6700PXH manual Heatsink Orientation

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Reference Thermal SolutionReference Thermal SolutionReference Thermal Solution

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6.5.1Heatsink Orientation

Since this solution is based on a unidirectional heatsink, mean airflow direction must be aligned with the direction of the heatsink fins.

Figure 6-5. Torsional Clip Heatsink Assembly

Figure 6-6 Heatsink Rails to PXH Package Footprint

6.5.2Extruded Heatsink Profiles

The reference torsional clip heatsink uses an extruded heatsink for cooling the PXH component. Figure 6-7Figure 6-7Figure 6-7 shows the heatsink profile. Appendix A lists a supplier for this extruded heatsink. Other heatsinks with similar dimensions and increased thermal performance may be available. Full mechanical drawing of this heatsink is provided in Appendix B.

6.5.3Mechanical Interface Material

There is no mechanical interface material associated with this reference solution.

20	Intel® 6700PXH 64-bit PCI Hub Thermal/Mechanical Design Guidelines

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Contents Intel 6700PXH 64-bit PCI Hub Page Contents Figures TablesRevision History Revision Description DatePage Introduction Definition of TermsReference Documents IntroductionPackaging Technology Keepout ExclusionIntel 6700PXH 64-bit PCI Hub Package Dimensions Bottom View Package Mechanical RequirementsThermal Specifications Thermal Design Power TDPDie Case Temperature Specifications Parameter ValuePage Thermal Simulation Page Die Case Temperature Measurements Thermal MetrologyZero Degree Angle Attach Heatsink Modifications Heatsink Performance Reference Thermal SolutionOperating Environment Mechanical Design Envelope Board-Level Components Keepout DimensionsTorsional Clip Heatsink Thermal Solution Assembly Torsional Clip Heatsink Board Component Keepout Heatsink Orientation Thermal Interface Material Pressure psi Thermal Resistance C × in 2/WReliability Guidelines Test Requirement Pass/Fail CriteriaPart Intel Part Number Supplier Contact Information Thermal Solution Component SuppliersTorsional Clip Heatsink Thermal Solution Page Mechanical Drawings Drawing DescriptionFigure B-1. Torsional Clip Heatsink Assembly Drawing Figure B-2. Torsional Clip Heatsink Drawing Figure B-3.Torsional Clip Drawing