AMD-K6 Datasheet, PDF (281/346 Pages) Advanced Micro Devices – AMD-K6 Processor

20695H/0—March 1998
Preliminary Information
AMD-K6^® Processor Data Sheet
Voltage Regulator
Processor
Airflow
Figure 95. Voltage Regulator Placement
A heatsink and fan combination can deliver much better
thermal performance than a heatsink alone. More importantly,
with a fan/sink the airflow requirements in a system design are
not as critical. A unidirectional heatsink with a fan moves air
from the top of the heatsink to the side. In this case, the best
location for the voltage regulator is on the side of the processor
in the path of the airflow exiting the fan sink (see Figure 96).
This location guarantees that the heatsinks on both the
processor and the regulator receive adequate air circulation.
Airflow
Ideal areas for voltage regulator
Figure 96. Airflow for a Heatsink with Fan
Chapter 17
Thermal Design
263