Thanks Mark. I haven't gotten to any logic analyzing yet, but I did notice that with the HD removed that the CS4231 appears as normal in the boot log. Simply attaching any drive to the header causes it and the boot process to fail. I wonder if it could still be a bad PEEL? We've got a bunch of them, but unfortunately they are not programmed for that application and would have to be sent out to load the applicable code.

Stu