Vaxstation 3100 - I have console access

Jan-Benedict Glaw jbglaw at
Thu Feb 18 15:27:17 CST 2016

On Thu, 2016-02-18 19:58:25 +0100, Jan-Benedict Glaw <jbglaw at> wrote:
> On Thu, 2016-02-18 11:08:28 -0500, Bryan C. Everly <bryan at> wrote:
> > I confirmed that there is a NCR5380 chip on the daughterboard and that
> > everything was connected.  Still no joy.  The one thing I'm wondering is
> > this.  If you look at the attached picture below from
> >, you will see there is a
> > 40-ish pin EPROM (?) in the bottom row of chips third from the left.  Mine
> > just has an empty socket there.  Is it possible this is causing the problem?
> I'll have a look at my machines once I'm back home (one to three
> hours.)  If I have a machine with a SCSI daughterboard like you have,
> I can probably give the EPROM to a friend for reading it out.

The first machine I opened (3100/76 SPX) does have all the SCSI stuff

  The second box (3100/38 with graphics and flopp) does have a SCSI
daugher board, but it's quite different to on . I made a photo of my

  There are, I think, two more MicroVAX 3100 systems down there, which
I didn't yet dismantle. Though the could have a matching board... Will
check these tomorrow.


      Jan-Benedict Glaw      jbglaw at              +49-172-7608481
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