On 12/30/2015 08:34 PM, Joel Ewy wrote: > ... David got me an older I/O board that worked properly, and I put > one of my own 4M memory backplanes on it and ended up with a nice > machine for myself. .. Sorry, those V2 memory backplanes support up to 8M in 2 4M 30-pin SIMMs. I think you can also use 2 1M SIMMs. It's been a few years. JCE