Well, to solve this problem for me I put together the quick project below.
Its based on a nifty piece of tech from Canakit called a 4-port USB Relay Controller, and as its name suggests it allows you control relays via a USB->Serial Port interface, with an on-board IC that responds to commands over a terminal.
This is how the device looks. On the left side is a USB port, on the right side is the 12V power supply connector along with some LED's
Controlling the device is simple. Once you terminal to its serial port you send it commands. rel1.on will tell the device to turn on relay 1. Toggle, toggles, off turns of etc etc. Basic, but functional.
Here is the kit connected and all running. 2 cables go from the relays to the RESET_SW and PWR_SW headers on the motherboard. I can reset the machine by sending a toggle command to the relays.
Note: Obviously if i need to reset the device i can't connect to it to run a terminal program, hence, the USB is connected to a 2nd backup PC :-)
So far the rig is running 101% smoothly, thanks to all who helped.
Find me on #hashcat on irc.rizon.net or tweet me @bitcrack_cyber