Intel Pentium 4 Processor Extreme Edition on 0.13 Micron Process in the 775-Land Package Datasheet

Datasheet 85
Boxed Processor Specifications
Figure 7-7. Boxed Processor Fan Heatsink Airspace Keep-out Requirements (Top View)
Figure 7-8. Boxed Processor Fan Heatsink Airspace Keep-out Requirements (Side View)