The HVD bus is designed such that if you plug it into a SE bus it will
go into reset and go passive. There is a signal DIFFSNS on the HVD that
will disable the bus. Not good, but better than nothing if you mess up
and plug them together.
The link below points to a company who makes the converters. Sometimes
they are available on Ebay, and there are some repackaged by Compaq and
HP that show up. They make both the 50 an 68 pin versions. I doubt
they will work over 5m/sec with HVD involved, however.
Will Adaptec controllers work in the Ultra5? I have many 2944's and
3944's available to play with but have not tried them.
Jim
<snip>
<snip>