if its going off after everytime you switch on the machine then theres a problem
check on the Impact motherboard that the battery ( either looks like a watch battery or in a light greenish wrapper ) hasnt leaked and damaged the board.... this can result in the machine losing its RAM and triggering the alarm
It looks like the battery has leaked down the board and the battery has sort of welded itself in between metal connecting pins that hold it in place. Does this board contain the game or can it be swapped out easily?