Xerox 6085 / daybreak microcode boot issues

Mike Ross tmfdmike at
Sat Aug 29 20:43:56 CDT 2015

Where are you? I have a bunch of 6085s, and a fair number of spare boards.

On Aug 30, 2015 1:37 PM, "Ian Finder" <ian.finder at> wrote:

> So I picked up a 6085-
> When I try and boot it, it gets stuck on 0199, which indicates microcode
> is getting loaded. It never gets to 0200 or 0201, indicating a success or
> failure loading microcode. It just hangs.
> If I boot diagnostics instead, it tells me (in report codes) to replace
> the MPB first, followed by the IOP/io board.
> Well, I can't really replace the MPB because I don't have another, and I
> paid quite a bit for the machine.
> Anyone seen this issue before? Where should I start on diagnosing the CPU?
> Better yet, if someone has a 6085 MPB they are willing to sell, I would be
> eternally grateful.
> Cheers,
> - Ian
> Sent from my iPhone

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