A VAXserver 3100 is usually the "high" model, with space for 2 5.25"
devices in the lower drive bay (TZ30 and RRD42 come to mind), and
then up to three 3.5" SCSI disks in the upper bay. It was often
equipped with one to three RZ25-E's (400M, Seagate ST1480).
The CPU is KA41 mostly; there are some KA42's out there, too. Console
is usually on MMJ port 1, set to 9600/8/N/1. It *can* be on one of the
other ports - dont ask me why, but I have seen several. :)
These are good, reliable machines. They are a lil on the power-hungry
side, but damn, they never give up. I have two, one running Ultrix 4.5,
and one running OpenBSD 3.2.
--fred