Re: RAM for Apple //c

[Wayne Stewart <waynes@intergate.bc.ca>]

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.

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

Arnold Willemer wrote:

> I just bought an Apple //c. I like it, but it has a defekt. It doesn't
> boot and one letter on the screen is inverse and not quite ok (It is
> exactly the 'e' in 'Check your ...'). I think it is a RAM error.
>
> I opened it and found out it has RAMs of type 4264. Now I found some
> old 4164-B on an old 286-Board. Can I use them too?
>
> And... can somebody tell me how to find out which RAM block is defect?