A vise for holding a work piece in position on an EDM machine includes a main plate for attachment to the rail or ledge of the EDM machine, and the main plate supports a vise that holds the work piece in position during the machining process. The electrically conductive contact element is configured to make an electrical contact between the printed circuit board and the electrical load. The self-refresh cycle is adjusted in a manner that provides a reduction in the current dissipation during the PASR operation.