Post by Steven Schweda Post by Chris
If the hardware really is identical, then there must be a eprom
or serial id prom onboard that you can reprogram with the code
from a real KZPCA, but you need at least one genuine card to
get started. [...]
And some way to do that "reprogram" operation.
%PKC0, Copyright (c) 1998 IntraServer Technology Inc. PKW V2.1.21 ROM V2.0
%PKC0, SCSI Chip is SYM53C895, Operating mode is LVD Ultra2 SCSI
(I haven't found a record of what happens with a non-accepted card.)
Knowing nothing (else), I always assumed that some mechanism was
created to ensure that IntraServer Technology Inc. got paid for that
driver, and that it involved a surcharge for the cards with the
Not usually a secret key, but the boot up sequence would need to
probe and identify all the hardware to load the correct drivers, at
least under unix. Iirc, VMS was different for qbus and unibus,
with a utility to create the loaded option list, but it's been years.
Normally, somewhere in that prom would be an id string for the model
and firmware revision.
I wanted a working addon scsi card for the as500/400 here, but too
expensive at the time. Doubt if anyone would care now, as the kit has
been obsolete for years and the original vendor probably no longer
exists. If you can't buy new for that sort of reason, seems fair
use to hack to get it working, especially for amateur use. How else
do you restore obsolete machines ?.
Do embedded work here and have a variety of eprom and prom
programming kit, so no problem in theory...