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Intel CPU IERR Filtering Algorithm and Fault Isolation Methodology

IP.com Disclosure Number: IPCOM000030691D
Original Publication Date: 2004-Aug-23
Included in the Prior Art Database: 2004-Aug-23

Publishing Venue

IBM

Abstract

The internal error (IERR) signal on Intel microprocessors (CPU's) can be triggered by a number of external events in addition to an Internal CPU Error. An algorithm and methodology is disclosed here that filters IERR events so that unnecessary replacement of CPU devices can be avoided and the actual causes of the event can be isolated.