A method and apparatus are disclosed for dynamically reconfiguring a computing system. The method comprises detecting a predetermined condition triggering a reconfiguration of the computing system, and dynamically reconfiguring a signal path affected by the condition from a first mode to a second mode responsive to detecting the condition. The apparatus is a computing system, comprising: a plurality of I/O switches, a crossbar switch, a plurality of signal paths, and a system controller. Each signal path is defined by an I/O switch and the crossbar switch. The system controller is capable of detecting a predetermined condition triggering a reconfiguration, and dynamically reconfiguring at least one of the signal paths affected by the condition from a first mode to a second mode.