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Reference Thermal SolutionReference Thermal SolutionReference Thermal Solution
R
20
Intel
®
6700PXH 64-bit PCI Hub Thermal/Mechanical Design Guidelines
6.5.1 Heatsink 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
6.5.2 Extruded 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.
6.5.3 Mechanical Interface Material
There is no mechanical interface material associated with this reference solution.