Question about Z80 ISA bus board

Joe R. rigdonj at cfl.rr.com
Fri Sep 1 11:02:03 CDT 2006


At 03:32 PM 8/31/06 -0700, you wrote:
>>>Full length ISA card, XT  card edge connection, DB 37 male connector, 
>>>Z80B, 8 4164's, 2 2764's, 2 Mostek MK4801AN-4's, MC1420B, 10 MHZ 
>>>crystal, and a handful of 74LSxxx glue chips.  Only identification 
>>>lettering is "BETRONIX = SWEDEN=PC84"
>
>Have you tried plugging this one into a running PC to see if there are any
>ROM signon messages displayes?  Ultimately, what this thing is may well be
>revealed by what's in those 2764's.
>
   FWIW the card that I had required SW drivers and didn't show anything
when you booted the PC. I was never able to find drivers so I finally
dumped the card.

    Joe



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