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Re: Ramworks III problem

Subject: Re: Ramworks III problem
From: "mdj" <mdj.mdj@gmail.com>
Date: 20 Aug 2006 22:44:16 -0700
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David Wilson wrote:
> Mike Maginnis wrote:
> > >The 80-column functionality on my RamWorks III seems to have failed.
> > >Is there an easy fix (i.e., IC replacement) for this or is it safe to
> > >consider it scrap?
>
> It could just be a bad RAM chip. Try the Control-SolidApple-Reset
> built-in self test - I think it tests Aux RAM even on a IIe.
> Does the RWIII come with its own diagnostic software - my Meg80z did I
> seem to recall.

Even without software, you might try swapping around some RAM chips. If
there's a bad one affecting 80 column displays it'll be one of the
first 8 chips on the card, (reading the chips like words on a page).

You can find the RamWorks III test software on asimov - it will do a
RAM test and show a graphical representation of where the dodgy chip is
located.

Matt

References:
- Ramworks III problem
  - From: Mike Maginnis <maginnis@computist-project.net>
- Re: Ramworks III problem
  - From: Mike Maginnis <maginnis@computist-project.net>
- Re: Ramworks III problem
  - From: "David Wilson" <mcs6502@gmail.com>

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