I have this quite rare board for the A500. Most of you know this version which is for the A1000. Mine comes with the upper deck and Stardrive module. But I cannot get it to work. I think mine needs an AC adaptor as it has a port on the back. Unfortunately, I do not have the adaptor nor are there any markings on what volts it needs. Anyone have any info on this board? What type of adaptor do I need for it?