Good haul of old pc stuph

[Jim Leonard]

Chuck Guzis wrote:
> That's what I was working from.  Have you tried doing a read of the display
> every so often (without writing) and comparing to previous reads to see if
> bits are getting picked/dropped?   That would settle the question of the
> RAM.  I'm not sure if a read/write will find all problems.

I filled RAM with a pattern that produces the flickering bits and read from it 
in a constant loop for over a minute, and the RAM tests out okay (even though 
something is clearly wrong).
-- 
Jim Leonard (trixter at oldskool.org)                    http://www.oldskool.org/
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