Good point, Fred. My frame of reference was the AT, which is the machine for 
which I had to hunt down the software.


On 10/15/20, 8:28 PM, "cctalk on behalf of Fred Cisin via cctalk" 
<cctalk-boun...@classiccmp.org on behalf of cctalk@classiccmp.org> wrote:

    On Thu, 15 Oct 2020, Richard Cini via cctalk wrote:
    > Well, it looks like one of those memory/multi-IO/clock boards like the 
AST RAMPACK+. I would take a look at this site (which you might already know):
    > https://stason.org/TULARC/pc/memory-cards/index.html
    > When I was looking for jumpers, etc., for both the AboveBoard AT and 
BOCARAM I have, I started here. Maybe if you browse the links, something will 
pop-up. I know that these boards often have special drivers for expanded 
memory; extended memory should just "show up". I would hope that the other 
ports/devices (clock, parallel, serial and game) are at standard PC addresses.
    
    For an 8 bit multi-function card of that era, there would be hard switches 
    for memory starting address (NO "Extended" nor "Expanded" RAM), and, since 
    the 5150 supported multiple parallel and serial ports, switches for 
    identifying which ones of those they would be.
    
    If you plug it into a 256K PC, with no serial and parallel, . . . \
    The RAM is PROBABLY set to start at 256K.
    If there are no other serial and parallel ports, then various diagnostic 
    programs will tell you whether the parallel is LPT1, LPT2, ...
    and the serial as COM1, COM2, ...
    
    
    --
    Grumpy Ol' Fred                     ci...@xenosoft.com
    


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