Re: RAM for Apple //c

[Arnold.Willemer@gmx.de (Arnold Willemer)]

Thank you very much for your answer.

>I'd probably run the built-in self test first and see what it says.
>To do the self test  while holding down the Control and the two
>Apple keys press and release the reset button.  A message comes
>up telling you which chip is bad however I don;t recall whether
>it reads from front to back or back to front. Hopefully someone
>witha better memory than me can provide more info on that.

Yes, I remember that newer Apples had a self test, but I never tried
it before. My Apple //c clicks once in while and shows modern hires
graphics. I don't know how to describe it. It looks like boxes with
different width and the width is changing all the time. The test never
ends and doesn't "say" anything. Only this "animation", that never
stops.

On my elder Apple //e there is a deep sound, the Hires gets white and
black, white and black and then there is the message "KERNEL OK". The
newer //e seems to switch the Lores and then beeps some times and says
"System OK".

What does this mean for the //c?

>Definetely 4164 RAM can't be used as a replacement for 4264.
>The two chips are incompatible.

What a pitty, I don't have any 4264 and in Germany I only found
4164-Chips. But what a luck, you answered. Someone else told me, it's
ok, they were both 1x64 and they must fit.

Arnold.

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