Intel E7500 Design Guide - Page 25
Heatsink Orientations
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Reference Thermal Solutions R 6.3.1 Heatsink Orientations To enhance the efficiency of the reference thermal solution, it is important for the designer to orient the fins properly with respect to the mean airflow direction. Simulation and experimental evidence have shown that the MCH heatsink thermal performance is enhanced when the fins are aligned with the mean airflow direction (Figure 12). Aligning the heatsink 45° relative to the airflow is acceptable but delivers reduced thermal performance. Figure 12. Preferred Heatsink Orientation F in O rie n tatio n Orthogonal Mean Air Flow Direction Incorrect Correct Parallel M ean Air Flow Direction heatsk_orient Intel® E7500 MCH Thermal and Mechanical Design Guidelines 25
Reference Thermal Solutions
R
Intel
®
E7500 MCH Thermal and Mechanical Design Guidelines
25
6.3.1
Heatsink Orientations
To enhance the efficiency of the reference thermal solution, it is important for the designer to
orient the fins properly with respect to the mean airflow direction. Simulation and experimental
evidence have shown that the MCH heatsink thermal performance is enhanced when the fins are
aligned with the mean airflow direction (Figure 12). Aligning the heatsink 45° relative to the
airflow is acceptable but delivers reduced thermal performance.
Figure 12. Preferred Heatsink Orientation
heatsk_orient
Orthogonal
Mean Air Flow
Direction
Parallel Mean
Air Flow
Direction
Fin
Orientation
Incorrect
Correct