20 Oct
2013
20 Oct
'13
10:53 a.m.
Hi everybody. I have just written up construction notes on this 80286 CPU
board.
Please see here:- for details:-
http://www.s100computers.com/My%20System%20Pages/80286%20Board/80286%20CPU%2
0Board.htm
Unfortunately there are some strange issues with the board running with RAM
boards other than our 4MG Static RAM board
(described here:-)
http://www.s100computers.com/My%20System%20Pages/RAM%20Board/4MG%20RAM%20Boa
rd.htm
With that RAM board, the 80286 is rock solid at 11MHz (no I/O or ROM wait
states required).
Please see the bottom of the page for details.
I am traveling all of next week but will explore further when I get back.
Sorry about the bad news
John