> Anyway, this machine has a PROM version 2.22.1H and a 50pin SCSI
> ribbon connector to where the drive(s) used to be. (I guess that
> would make it a 10, since I know the 20 used SCA drives, so it would
> need a wider or secondary cable for the extra SCSI lines.)

I don't think SCA has any extra SCSI lines.  It just puts SCSI on the
same connector as the ID setting and power.  (That is, it has extra
lines, but they're not SCSI lines.)  Or, to put it another way, the
"secondary cable" you refer to would be the power connector and
something to set the SCSI ID.  I'm sure someone will correct me if I'm
wrong about SCA! :-)

Thus, it could be a 20 clone and still use 50-pin-header drives.  It
just wouldn't be a 100%-peripheral-compatible clone.  I know I'd love a
20 that didn't make me dig up SCA drives... :-)

> (A sure fire way to tell if it's a SS10 or SS20 would be nice too.
> I'm just guessing at the moment.)

Drop a stick of RAM in it, turn it on, and see what the banner says?

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