Intel 632xESB, 631xESB manual Heatsink Orientation, Torsional Clip Heatsink Board Component Keepout

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Reference Thermal Solution—Intel®6321ESB ICH

Figure 11. Torsional Clip Heatsink Board Component Keepout

Note: Same Keepout zones as Intel ® 3100 Chipset

7.5.1Heatsink Orientation

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

Intel® 631xESB/632xESB I/O Controller Hub for Embedded Applications

February 2007TMDG 23

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Contents February Thermal and Mechanical Design GuidelinesPage Contents 001 Initial public release Revision HistoryTables Date Revision DescriptionDesign Flow IntroductionThermal Design Process Term Definition Definition of TermsReference Documents Definition of TermsTitle Location Referenced DocumentsPackaging Technology Intel 6321ESB I/O Controller Hub Package Dimensions Top ViewIntel 6321ESB ICH-Packaging Technology Intel 6321ESB I/O Controller Hub Thermal Specifications Thermal SpecificationsThermal Design Power TDP Die Case TemperatureThermal Simulation Characterizing the Thermal Solution Requirement Thermal Solution RequirementsExample 1. Calculating the Required Thermal Performance Processor Thermal Characterization Parameter RelationshipsHub @ 12.4 W Required Heat Sink Thermal Performance ΨCADevice CA º C/W at T LA = 45º C CA º C/W at T LA = 65º C Zero Degree Angle Attach Methodology Die Case Temperature MeasurementsThermal Metrology Thermal Solution Decision Flowchart Thermocouple Wire Die Substrate Cement + Thermocouple Bead Heatsink Performance Reference Thermal SolutionOperating Environment Mechanical Design Envelope Board-Level Components Keepout Dimensions Torsional Clip Heatsink Thermal Solution Assembly Torsional Clip Heatsink Board Component Keepout Heatsink OrientationThermal Interface Material Mechanical Interface MaterialPressure on IHSpsi End of Line End of Life Heatsink ClipClip Retention Anchors Thermal Resistance C × in 2/WTest Requirement Pass/Fail Criteria Reliability Guidelines§ § Reliability GuidelinesTorsional Clip Heatsink Thermal Solution Appendix a Thermal Solution Component SuppliersDrawing Description Appendix B Mechanical DrawingsMechanical Drawing List Torsional Clip Heatsink Assembly Drawing Torsional Clip Heatsink Drawing Heat Sink Foam Gasket Drawing Torsional Clip Drawing