V2xt Executive load failure error code 1

I have got it to load once or twice But now It won't. I've tried every boot disk off this site and any other on I can find. Also have tried dos 5.0 and 6.2. It's a fdmc unit with 4 aa's battery. they went dead and I replaced them but not wile under power. I had it load 2 or 3 times after that but I tried it a week later with no luck since. The disk that tries the hardest is the dx32 one off this group dl's it runs about 2 pages of code then pops back to a: * It has a 486 motherboard and a hard drive or a c: which I believe is on the communication board in a big slot on the mother*



thanks for any input