Is there a single pin/signal on a PC PCI bus I can toggle high or low to suspend PC operation without causing a re-boot?

We have a small relay card that waits to receive an IR code from someone wearing an IR badge. Once this code is received, the relays engage and connect the video, USB ports, PS2 for keyboard/mouse, etc.

This works great. If you don't have the IR badge, you can't use the PC. However, if I can control a pin on the PCI bus that suspends the CPU, I could really simplify the circuit.

Is this do-able?


Regards,

-Bruce