Patent ID: 7600157
Filing Date: 2009-10-06
Classification: G06F

Abstract:
1. An information handling system (IHS) comprising: a first input/output (I/O) controller adapted to control a first and a second I/O slot in a normal operation state; a second I/O controller adapted to control a third and a fourth I/O slot in a normal operation state; means including a power on self test (POST) routine for detecting an I/O controller failure; switching means, responsive to a detected I/O controller failure, for operatively coupling/decoupling the first and second I/O slot to/from the first I/O controller, for operatively coupling/decoupling the third and fourth I/O slot to/from the second I/O controller, and for operatively decoupling/coupling the first and second I/O slot from/to the third and fourth I/O slot according to an I/O failure recovery protocol, the I/O failure recovery protocol being provided for adapting one of either the first and second I/O controllers to operatively couple to the first, second, third and fourth I/O slots as a function of the detected I/O controller failure, wherein the first and second I/O controllers include PCI controllers and the first, second, third, and fourth I/O slots each include a PCI slot; the switching means provided to couple the first, second, third, and fourth I/O slots to one of the first and the second I/O controllers; and one of the first and second I/O controllers provided to control the first, second, third, and fourth I/O slots, wherein the one of the first and second I/O controllers is set to half bus speed.