AP-580 Voltage Guidelines For Pentium® Processors With MMX(TM) Technology

This document explains the voltage specifications, recommends solutions for supplying consistent power, and suggests validation techniques to ensure robust Pentium® processor with MMX(TM) technology-based systems. This application note is of particular importance due to the new core voltage of the Pentium processor with MMX technology. Its split voltage (2.8v core; 3.3v input/output) is in contrast to the Pentium processor's unified voltage (3.3v core and input/output). Motherboard designs must be modified to accommodate the Pentium processor with MMX technology's new core voltage. Refer to Pentium Processor Flexible Motherboard Guidelines (order #243187) for additional information.

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