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
80 Datasheet
6.2.2 Measurements For Thermal Specifications
6.2.2.1 Processor Case Temperature Measurement
The maximum and minimum case temperature (T
CASE
) for the Pentium 4 processor in the
478-pin package is specified in Ta b le 3 3. This temperature specification is meant to
ensure correct and reliable operation of the processor. Figure 30 illustrates where Intel
recommends T
CASE
thermal measurements should be made.
Figure 30. Guideline Locations for Case Temperature (T
CASE
) Thermocouple Placement
Measure from edge of processor
Measure T
at this point.
CASE
Thermal interface material (TIM)
should cover the entire surface of
the Integrated Heat Spreader
0.689”
17.5 mm
0.689”
17.5 mm
35 mm Package