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Intel

Pentium

4 Processor in the 423-pin Package

6.2 Thermal Analysis

6.2.1 Measurements For Thermal Specifications

6.2.1.1 Processor Case Temperature Measurement

The maximum and minimum case temperature (T

CASE

) for the Pentium 4 processor is specified in

Table 33. This temperature specification is meant to ensure correct and reliable operation of the

processor. Figure 24 illustrates where Intel recommends that T

CASE

thermal measurements should

be made. Figures 25 and 26 illustrate two possible measuring techniques. Refer to the Intel

Pentium

4 Processor Thermal Design Guidelines for more information.

Figure 24. Guideline Locations for Case Temperature (T

CASE

) Thermocouple Placement

Figure 25. Technique for Measuring with 0 Degree Angle Attachment

000874b

Measure from edge of processor

Measure T

at this point.

CASE

Thermal grease should cover the

entire surface of the Integrated

Heat Spreader

1.125”

1.075”

1 2 ... 68 69 70 71 72 73 74 75 76 77 78 ... 89 90

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