Intel Pentium 4 Processor in the 478-PinPackage at 1.40 GHz, 1.50 GHz, 1.60 GHz, 1.70 GHz, 1.80 GHz, 1.90 GHz, and 2GHz

Thermal Specifications and Design Considerations
Datasheet 77
6.0 Thermal Specifications and Design Considerations
The Pentium 4 processor in the 478-pin package uses an integrated heat spreader (IHS)
for heatsink attachment which is intended to provide for multiple types of thermal
solutions. This section will provide data necessary for development of a thermal solution.
See Figure 29 for an exploded view of an example Pentium 4 processor in the 478-pin
package thermal solution. This is for illustration purposes. For further thermal solution
design details, please refer to the Intel® Pentium® 4 Processor in the 478-pin Package
Thermal Design Guidelines.