Re: Apple IIgs random hardware crashing - any ideas?

[Greg Buchner <apple22@mn.rr.com>]

In article <081020032343562501%toasterking@SPLATbigfoot.com>,
 ToasterKing <toasterking@SPLATbigfoot.com> wrote:

> Also I've discovered something else:  Doing an expanded memory test
> using BitBanger always reveals some bad RAM.  Starting with address
> $300000 and continuing with every 2 bytes afterward ($300002, $300004,
> $300006) are reported bad.  Obviously though, this is a side effect of
> the problem rather than the cause of it, because when my GS-RAM III
> card is removed from the Memory Expansion slot, the crashes still
> occur.

Because of the way that AE did their memory cards, BitBanger can't tell 
how much RAM is in one.  And being that you have 2MB on the card running 
in a ROM 3, you start getting errors right where there is no more 
memory.  BitBanger's author probably could have fixed it so it would 
work, but he never had an AE cards to play test with.  And it was the 
only memory test program that found out I had bad RAM on my AE GS-RAM+ 
(with a full 6GB.)  So the only way you can use BitBanger on an AE card 
is if you have it fully populated.

Otherwise though, I had no new ideas for what you could try.  The three 
GS crashing problems I've ever experienced that were hardware related 
were easily tracked down.  And you seem to have tried everything but a 
motherboard replacement...

Greg B.

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