On Thu, 2016-02-18 19:58:25 +0100, Jan-Benedict Glaw <[email protected]> wrote: > On Thu, 2016-02-18 11:08:28 -0500, Bryan C. Everly <[email protected]> > 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 > > http://home.iae.nl/users/pb0aia/vax/vs3khw.html, 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 onboard. The second box (3100/38 with graphics and flopp) does have a SCSI daugher board, but it's quite different to http://home.iae.nl/users/pb0aia/vax/s1.jpg on http://home.iae.nl/users/pb0aia/vax/vs3khw.html . I made a photo of my board: http://lug-owl.de/~jbglaw/VAXstation_3100m38_scsi_board.jpeg 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. MfG, JBG -- Jan-Benedict Glaw [email protected] +49-172-7608481 Signature of: Lauf nicht vor Deinem Glück davon: the second : Es könnte hinter Dir stehen!
