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Method to Detect Power Supply and Motherboard Failures in an Inoperative PC System

IP.com Disclosure Number: IPCOM000019786D
Original Publication Date: 2003-Sep-29
Included in the Prior Art Database: 2003-Sep-29

Publishing Venue

IBM

Abstract

Today when a PC fails to "turn on" the servicer usually suspects the motherboard and power supply as the source of the failure. Unfortunately the power supply failure rate is much lower than the motherboard failure rate. This causes many servicers to replace good power supplies because they have no way of knowing whether the power supply is good or bad until the servicer changes it. Due to the low cost of the power supplies they are disposed of when they are replaced regardless of whether they are good or not. This costs IBM money needlessly. This method and associated low cost hardware allows the customer or servicer with a high degree of certainty to pinpoint the failure to either the power supply or the motherboard.