Browse Prior Art Database

Method to Recover from Corrupted System Flash

IP.com Disclosure Number: IPCOM000014188D
Original Publication Date: 2000-Dec-01
Included in the Prior Art Database: 2003-Jun-19
Document File: 1 page(s) / 36K

Publishing Venue

IBM

Abstract

In current Netfinity systems, if the system flash gets corrupted the only corrective action to take is to replace the system planar board. This can be a costly repair action. This invention will allow a CE(or development engineer in the lab) to boot a system that has a corrupted or nonexistent system flash.

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Method to Recover from Corrupted System Flash

In current Netfinity systems, if the system flash gets corrupted the only corrective action to take is to replace the system planar board. This can be a costly repair action. This invention will allow a CE(or development engineer in the lab) to boot a system that has a corrupted or nonexistent system flash.

The invention consists of a flash socket for a suitable flash module and a PCI-to-flash interface chip mounted on a PCI adapter card. Since the system flash module typically resides on a secondary ISA or LPC bus, the addresses for these devices are subtractively decoded off the Primary PCI bus. This feature would enable the add-in "flash card" to positively decode the flash addresses before the cycle is sent to the secondary bus. Once the system boots, the flash card could be disabled and the system flash could be updated by the standard system flash utility.

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