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Re: IIc stopped working - white bars across screen



Eric Rucker <bhtooefr@gmail.com> wrote:
> There a good way to tell which chip is bad, given that it won't come up
> to the self test, or should I remove one, install a socket, install a
> fresh chip in there, and test, and do that until all of the MRD chips are
> replaced? I hate working on //c motherboards, easy to lift a trace...

You can try piggybacking a known-good chip on each DRAM chip. This doesn't
work for all failures, but it works for many, and can save a lot of work
(and risk). 

-michael - NadaNet 3.1 and AppleCrate II: http://home.comcast.net/~mjmahon