Those old accelerator boards, I would say the control panels have been lost to time, unfortunately. Best you can do is try other manufacturer's drivers for similar type boards and hope for the best. Use something like tattletech to see if the board is being recognized and running at the proper speed. I would think that the accelerator function should just work, but the external video, best of luck on that one. If you have pictures of the board, it's possible that maybe it was produced for other companies and we could narrow down what might work for it.