VAXstation 3100/30 Questions

I think this qualifies as "Classic", since the VS3100 is based on the CVAX chip set from 1987. I have a few questions which maybe someone on the list can answer. I picked up a VS3100/30, model VS42A-AA, with 24MB RAM. The material I have found on the Web says this computer should be expandable to 32MB of RAM, but I don't see how. It now has 4MB on the motherboard and two daughter boards with 12MB and 8MB. The two daughter boards connect together with only one connecting to the motherboard. Where would you attach another board with 8MB more memory? Although the system came with a hard drive and OpenVMS, I got the hobbyist OpenVMS CD-ROM and want to install it on another hard drive that I've added. The drive is an IBM Model 0663-H, which is a 1GB (slightly less, actually, if you count in base 2) drive. The specs for the drive say it is "compatible" with the VS3100 when a configuration is made using a SCSI command (which I have no way of doing, of course--it must be done by a driver). I connect the drive, the VS3100 console sees it fine, and then I try to do a low-level format using Test 75. At various times (varies randomly) into the formatting progress I get an error "PV_SCS_FMT_ERR#2", which I have no idea of its meaning. What does this mean? Is there any termination on the internal SCSI A bus on this machine, or does the last drive on the cable need to do it? (The IBM Model 0633-H doesn't have any, and it was on the middle connector.) Thanks for any help. Dave