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 <[email protected]> [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 > > -- > You received this message because you are subscribed to the Google Groups > "N8VEM-S100" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups "N8VEM-S100" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
