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List of Figures
vii
20092B/0—Sep1996
AMD-K5 Processor Thermal Considerations
List of Figures
Figure 1.
Series Resistance Representation of the
Thermal Resistance Path. . . . . . . . . . . . . . . . . . . . . . . . 4
Natural and Forced Convection Curves for a
Typical Heat Sink . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Extruded and Pin Fin Heat Sinks . . . . . . . . . . . . . . . . . 8
Heat Sink Impingement Airflow. . . . . . . . . . . . . . . . . 10
Mechanical Interface from AMD-K5 Processor to
Heat Sink Options (Personal Computer Power
System Fan Generates Airflow) . . . . . . . . . . . . . . . . . 11
Mechanical Interface from AMD-K5 Processor to
Heat Sink/Fan Module Options (Airflow
Generated by Fan on Module). . . . . . . . . . . . . . . . . . . 12
296-Pin Ceramic Staggered Pin Grid Array. . . . . . . . 18
296-Pin Ceramic Staggered Pin Grid Array
With Thermal Slug . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Airflow Through the Personal Computer Chassis. . . 20
Test Setup to Measure AMD-K5 Processor Case
and Heat Sink Temperature . . . . . . . . . . . . . . . . . . . . 21
AMD-K5 Processor With No Heat Sink. . . . . . . . . . . . 24
Heat Sink A with Thermal Grease . . . . . . . . . . . . . . . 26
Heat Sink A with White Pad . . . . . . . . . . . . . . . . . . . . 26
Heat Sink A with Rose Pad . . . . . . . . . . . . . . . . . . . . . 27
Heat Sink B with Thermal Grease. . . . . . . . . . . . . . . . 29
Heat Sink B with White Pad . . . . . . . . . . . . . . . . . . . . 29
Heat Sink B with Rose Pad . . . . . . . . . . . . . . . . . . . . . 30
Heat Sink C with Thermal Grease . . . . . . . . . . . . . . . 32
Heat Sink C with White Pad . . . . . . . . . . . . . . . . . . . . 32
Heat Sink C with Rose Pad . . . . . . . . . . . . . . . . . . . . . 33
Figure 2.
Figure 3.
Figure 4.
Figure 5.
Figure 6.
Figure 7A.
Figure 7B.
Figure 8.
Figure 9.
Figure 10.
Figure 11.
Figure 12.
Figure 13.
Figure 14.
Figure 15.
Figure 16.
Figure 17.
Figure 18.
Figure 19.