Re: [N8VEM-S100:4898] 80386 master/Slave CPU board with 8 or 32 MB Static RAM boards now ready to go

[Todd Goodman <t...@bonedaddy.net>]

Hi John,

I'd like three of each of the boards.

I have plenty of the mezzanine boards (over 200) so I welcome orders
from me for them.

Thanks,

Todd

* John Monahan <mon...@vitasoft.org> [140812 17:43]:
> OK, after some minor glitches I'm now ready to send off a batch order for
> our S100 bus Master/Slave 80386 CPU board and its two daughter RAM boards
> 8MB and 32/64MB.    These will be a "commercial quality" boards with gold
> fingers (and in the case of the 80386 board) slightly thicker board traces.
> This board set represents a few hundred hours of debugging and prototypes.
> In fact the CPU board is the 5th prototype board Andrew & I did.    It runs
> on the S100 bus at 9MHz (0 -16MB addressing range) and with the daughter
> boards (8, 32 or 64MB) at 36MHz in pipeline mode, no wait states.   Much of
> the time in the past was spend getting a good ROM based monitor working that
> can switch the CPU in and out of Protected mode and thus allowing the 4GB
> addressing range capability etc.  The board boots up fine (in real mode)
> with MSDOS V4.01.  All this is described here:-
> 
>  
> 
> http://s100computers.com/My%20System%20Pages/80386%20Board/80386%20CPU%20Boa
> rd.htm
> 
> http://s100computers.com/My%20System%20Pages/80386%20-%208MG%20RAM%20Board/8
> MG%20Static%20RAM%20Board.htm
> 
> http://s100computers.com/My%20System%20Pages/80386%20-%2032MG%20RAM%20Board/
> 32MG%20Static%20RAM%20Board.htm
> 
> http://s100computers.com/Software%20Folder/80386%20Monitor/80386%20Monitor.h
> tm
> 
>  
> 
> These boards are fairly sophisticated, I do not recommend them for S100 bus
> beginners, however in all lightly-hood, it will be quite some time until
> another batch order is done, so if you think you are/will be up to utilizing
> them now or in the future, let me know and I will add your name to the batch
> order (see below).  So far everybody is ordering all 3 boards.  The 80386
> CPU board will work on its own with our other RAM boards and in particular
> with the recent 16MB Static RAM board. See:-
> 
> http://s100computers.com/My%20System%20Pages/16M%20RAM%20Board/16MG%20RAM%20
> Board.htm
> 
> With the few other RAM S100 RAM boards (Godbout etc.) I have it seems to be
> fine also.
> 
>  
> 
> The 8MB daughter board is a simpler RAM board but expensive to stock with
> RAM.  The 32 or 64 MB Board requires our V06c "mezzanine boards". These were
> used for the above 16MB Static RAM board.  The 4MBX8 static RAM chips have
> only recently become available. I have not actually tested them yet on this
> board.  The 2MBX8 chips (3.3 & 5V types), run fine.  In the 80386 monitor I
> wrote an extensive RAM testing program to check them out.  It checks out
> bytes, words and dword read/writes to each byte or RAM checking that all
> other RAM locations are not overwritten (bad addressing lines).  Takes a few
> hours to run  BTW.
> 
>  
> 
> So far I have the following listing of people that wanted boards:-
> 
>  
> 
> Brian Marstella in 1 of the 80386 boards as well as 1 each of the 8 MB and
> 32 MB boards + mezzanines. 
> 
> Matt Turner  2  of 80386, 2  of 8Mb Ram, 2  of 32Mb Ram & req'd mezzanines
> Paul Birkel, 1 of the 80386 boards as well as 1 each of the 8 MB and 32 MB
> boards + mezzanines. 
> 
> David Fry,   1 of the 80386 boards as well as 1 each of the 8 MB and 32 MB
> boards + mezzanines. 
> 
>  
> 
> If you want to be added to the list please let me know ASAP.  I have not
> figured out total costs yet, but it's going to be the same as for past
> boards. Will have them done bt PCBCart.
> 
>  
> 
> I'm not quite sure what to do about the mezzanine boards.  Todd so far we
> are looking at 5X4 = 20 mezzanine boards.   Do you have 20-30 in stock?
> 
> Finally I want to stress there is always risk in doing these boards.
> Probably less than normal this time, since I only made one  very minor
> change to the last run I did on the RAM boards.   But again this is a system
> for experienced people.
> 
>  
> 
> John
> 
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