🚀 go-pugleaf

*** I'm stumped ***

I've just added a Hercules Mono board and an additional 384k RAM to my
IBM PC II with an Amdek 310A.  All diagnostics pass fine, and the
Hercules test program shows the graphics are correctly installed.  A
graphics editor that came with STSC/APL runs fine.  When I run Autocad
the monitor shows a blizzard of snow (looks more like a well structured
rain storm).  When I take Autocad to text mode and quit the program I
get an "DOS Memory Allocation Error".  At that point I can reboot with
cntl/alt/del.

I have taken the same software to a machine with the same amount of
memory and an IBM monitor with a Hercules mono card and had neither the
blizzard or the unusual exit.

Mother board switch settings are: SW1=01000001 & SW2=10110000 where
1=on and 0=off.

Anybody got any ideas?  My present guess is mother board memory
controller.  I have swapped in a new memory expansion board to see if
it was bad.

Thanks,
Bruce Harris
!tektronix!tekecs!bruceh