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IntelŪ PentiumŪ 4 Processor in the 423-pin package EMI Guideline
This document is intended to provide electrical and mechanical design engineers with information in
regards to developing a Pentium® 4 processor based system to meet government EMI regulations.
Heat sink grounding, processor shielding, differential and spread spectrum clocking and the test
methodology impact to FCC Class B requirements are discussed.
Designers should be aware that implementing all the recommendations in this guideline will not guarantee compliance to EMI regulations. Rather, these guidelines may help to reduce the emissions from processors and motherboards and make chassis design easier.
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