ir332@sdcc6.ucsd.EDU (Jeff Miller) (09/02/87)
I have been having two problems expanding my Wells American AT clone,
and I would be interested in hearing from others who have
successfully accomplished either expansion on this machine (model
200, 6-8 MHz) or also had the same problems:
1. Installing a memory board. RAMvantage doesn't seem to work with
any combination of switch settings on the motherboard or card. I
either get IO parity errors and the system halts on boot (at the
address the board is set to start at), or the system just doesn't
recognize the memory on the board. The setup program tells me I
have 640K base memory & 384K extended, regardless of any switch
settings anywhere.
2. Installing a floppy tape controller. I have been trying to
get an Irwin 110 type of tape to work, but there seems to be some
incompatibility between it and the Wells floppy controller. I
got the extra board one is supposed to use to install the 110 in
an AT compatible, but to no avail. With this board in and the
floppies hooked to it, neither tape nor floppies can be accessed.
(I don't think it is relevant, but I do have 1 1.2 floppy & 1 360K.)
--
Jeff Miller ARPA: ir332@sdcc6.ucsd.edu
U. C. San Diego
Dept Psychology, C-009
La Jolla, CA 92093