If the pad for the front panel header is provided but is not populated with connector pins, it is unclear whether the circuitry necessary to support the header will be present. You could (carefully!) try shorting pad 5 to pad 7 using a small slot screwdriver and see if this causes a system reset. If it does, you are good to go and could solder wires to these pads for a remote SPST N/O reset button.
Note that doing any of this will void your warranty!
Hope this helps,
This message was posted on behalf of Intel Corporation