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What is the difference between the PIIX4 (82371AB) and the PIIX4E (82371EB)?

April 26, 2017difference piix4 piix4e

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What is the difference between the PIIX4 (82371AB) and the PIIX4E (82371EB)?

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The PIIX4E is the replacement for the end of lifed PIIX4. The PIIX4E is form, fit, and functionally identical to the PIIX4, but it has added Advanced Configuration and Power Interface (APCI) power management capability. The PIIX4E Specification Update can be downloaded from the developer’s web site.