I have a Startalk A that will keep restarting itself. I have it hooked up to an 8x24 with DR5. I have changed out the harddrive, powersupply, dialogic card, motherboard and the card that the harddrive plugs into. When I have it hooked up to the dumb terminal it will get to the point where it say that it passed the motherboard power-on diagnostics and then it starts over again. I need some suggestions on what I can do.