Re: GSOS File copy error: System Error ($0040). Thoughts?

[Warren Ernst <wernst@gmail.com>]

On Sep 30, 10:09 pm, demp...@actrix.gen.nz (David Empson) wrote:
> Warren Ernst <wer...@gmail.com> wrote:
> > Anyway, I'm now working under the assumption that I should get more
> > SIMMs. Can someone report what the specs are for these things? RAM
> > Speed (mine are 70ns, but would 80's work? 60's?)? Fast Page Mode? 3-
> > chip or 9-chip? Parity or non Parity?
>
> From a posting of mine in 1998:
>
> As far as the SIMMs go: parity is irrelevant, the SIMMs must support
> RAS-before-CAS refresh, and some hybrid types may not work.  The speed
> should be 120 ns or faster.  The safest bet is to use SIMMs that are
> known to work in a Mac Plus or SE.
>
> --
> David Empson
> demp...@actrix.gen.nz

David:

Thanks for the specs. I'm going to assume that the specs for whatever
card you used in 1998 are the same for this newer card.

Bill,

I did my last set of SIMM swaps to determine the faulty SIMM, and then
I tracked down a copy of Bitbanger and let it do its thing. Wouldn't
you know it -- neither test shows any bad RAM any more. Sigh. But
good. And I can now copy tons of files between folders again.

At any rate, if you could officially comment on what sort of SIMMs are
best (to confirm David's comments, above), and if you could officially
state what SIMM socket is what bank of RAM, that would help my
troubleshoot this stuff in the future. I'll probably start trolling
for SIMMS "just in case" once you confirm the type of parts needed.

Thanks,
Warr