This seems like the next possible task for such a device. I've kept a yellow post-it note under the monitor with a listing of what card resides in which slot and have often lost it. Having to then remove the monitor to retake inventory of the system. This seemed like a good time for the next evolution of code, definitely not as complicated as the IRQ issue, but requiring some thought, none the less.
In the next project we auto detect the SSC card and store the slot
In the next project we auto detect the SSC card and store the slot