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

Boxed Processor Specifications
88 Datasheet
8.2 Mechanical Specifications
8.2.1 Boxed Processor Cooling Solution Dimensions
This section documents the mechanical specifications of the boxed Pentium 4 processor
inthe478-pinpackage.Theboxedprocessorwillbeshippedwithanunattachedfan
heatsink. Figure 32 shows a mechanical representation of the boxed Pentium 4 processor
in the 478-pin package.
Clearance is required around the fan heatsink to ensure unimpeded airflow for proper
cooling. The physical space requirements and dimensions for the boxed processor with
assembled fan heatsink are shown in Figure 33 (Side Views), and Figure 34 (Top View).
The airspace requirements for the boxed processor fan heatsink must also be
incorporated into new motherboard and system designs. Airspace requirements are
shown in Figure 37 and Figure 38. Note that some figures have centerlines shown
(marked with alphabetic designations) to clarify relative dimensioning.
Figure 33. Side View Space Requirements for the Boxed Processor