Ok, I've opened the box, and something looks a bit odd to me -- there is
not an even number of memory modules in the system. The slot layout is
as follows:
 
+---Front----------------------------------------+-------------+
|                                                |             |
|   XXXXFULL-SIMM-SLOTXXX  XXXEMPTY-SIMM-SLOTXXX |  POWER      |
|   XXXXFULL-SIMM-SLOTXXX  XXXEMPTY-SIMM-SLOTXXX |    SUPPLY   |
|   XXXXFULL-SIMM-SLOTXXX  XXXEMPTY-SIMM-SLOTXXX |             |
|   XXXEMPTY-SIMM-SLOTXXX  XXXEMPTY-SIMM-SLOTXXX |             |
|                                                |             |
\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/

This seems suspect... shouldn't the simm installation be symmetrical?
Also, what sort of simms do I need?  Anyone have any spares floating
around?

Yet another tidbit... here's the TEST 50 output from the memory section:

?? MEM      000C.0200
      00C00000 00000000 00020002 10012440 AAAAAAAA AAAAAAAA AAA5AAAA
AAAAAAAA

Is this bad?
Thanks again for all your help,
Chris.
ccraft@cncc.cc.co.us

Michael Kukat wrote:
> 
> Hi !
> 
> > I think I've found what the problem might be netbooting my m76.  On
> > startup, I get the following from the POST routine:
> >
> > KA43-A  V1.2
> >
> > F...E...D...C...B?..A_..9...8...7...6...5...4...3_..2_..1?..
> >
> >  ?  C  0080  0000.4001
> > ??  B  0010  000C.0200
> >  ?  6  80A1  0000.4001
> > ??  1  00C0  0100.2004
> 
> Ouch...
> 
> >
> > >From the VAX hardware reference, I get that B is for memory and A is the
> > MMU.  Anyone know what the numbers mean in the string:
> 
> OK, A is not inside (i think that was the _ behind the letter)... Same
> output as on my box. "C" is the DZ, the serial controller (if you work
> with the serial console, it's normal), 6 is SCSI-B, the error means no
> more than: no external drives connected.
> 
> B is really ugly. Have fun with modules-swapping. Your memory has some
> kind of error i think (i hope it isn't the cache), try working with only
> 2 modules until the error is away, then try the next two ones... and so
> on. Leave out the module(s) making trouble. (Maybe you neet two modules
> at once, don't know, never tried)
> 1 is the NI - Network interface. Just connect it to your net (is done,
> switch to the other interface, the little push-switch between the
> network connectors) The error is another one than i get with an
> unterminated net, but i think it's all.
> 
> the numbers behind "B" mean: 000C -> 12 (i think, you said that you have
> 12 Megs inside...) 0200 -> i heard it's the defective bit, but don't try
> to find out, simply change modules, i thinks it's lots faster)
> 
> Should "A" really be the mmu ? It's the list for the M40. I thought,
> NetBSD can't run without MMU
> 
> Ok, happy trying so far... Michael