Intel E7500

Reference Thermal Solutions
R
Intel
®
E7500/E7505 Chipset MCH Thermal Design Guide 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 11). Aligning the heatsink 45° relative to the
airflow is acceptable but delivers reduced thermal performance.
Figure 11. Preferred Heatsink Orientation
heatsk_orient
Orthogonal
Mean Air Flow
Direction
Parallel Mean
Air Flow
Direction
Fin
Orientation
Incorrect
Correct