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Re: reviving an Apple IIGS...
"Michael J. Mahon" <mjmahon@aol.com> wrote in message Ee2dnbDgRaewNubVnZ2dnUVZ_u-dnZ2d@comcast.com">news:Ee2dnbDgRaewNubVnZ2dnUVZ_u-dnZ2d@comcast.com...
> Jeff Blakeney wrote:
> > To: Krishna Sadasivam
> > On Sun, 13 Jul 2008 17:52:20 -0700, Krishna Sadasivam wrote:
> >
> >> I should also note that the RamFAST utility appears to lock up from
> >> time to time when I am in it. (I'm holding the 'zero' key to access
> >> the onboard RamFAST utilities. I will add that my hard drive now
> >> appears to boot into my System 6.0.1 partition (albeit very slow...) -
> >> (it may have taken some time for it to 'warm up', being dormant for
> >> the better part of a decade). It freezes after the thermometer.
> >>
> >> I need to check if the ZipGS card is functioning or if the machine is
> >> crawling at 1MHz...
> >>
> >> The adventure continues.
> >
> > I'm in the process of setting up my IIgs again but mine has only been
> > down for a number of months, not years. :-)
> >
> > The last time I had my machine set up, I was trying to modify a flaky
> > ZipGS to a higher speed but never got it running reliably. Last week,
> > when I put my regular ZipGS back in, it wouldn't start properly (similar
> > problems to what you experienced above) but by pulling the card from the
> > slot, disconnecting the ribbon cable from the card, removing the ribbon
> > cable from the processor socket, putting everything back together and
> > then flexing the card and/or ribbon cable a couple times (the ribbon
> > cable tends to bend the ZipGS card away from the power supply if the
> > card is in slot three) it has started working again.
>
> The processor socket-to-board connection seems to be a well known
> design weakness in all IIgs accelerators...
Cable, too, especially if it's been folded(pinched) numerous times.
That breaks the conductor inside the insulation. I've run into that
quite a bit on many different interfaces.
Bill Garber from GS-Electronics
http://www.garberstreet.com