I found a low cost 5 volt delay timer on Amazon that has a trigger input. Once this trigger goes to above 3.3 volt, the timer relay is energized and counts down to a preset value. And the end of the timer counter, the relay de-energizes.
Step 1: Wire the Relays.
pulse to reset the motherboard. Both relays had their power and trigger inputs wired in parallel.
Each relay has a potentiometer to adjust the time it's relay will denergize. Relay 2 has a slightly longer time expiration of 2 seconds.
The third pic gives the wiring of the relay contacts. The reset pin on a motherboard is active low (0v gives a hard reboot). I wired the output to the reset pin.
Step 2: Provide a Regular Pulse to Reset the Timers.
Now if my pc locks up or the FLOWSTONE fails to function, in 7 minutes my machine will hard reboot.