On Aug 16, 9:33 am, Dan <dantear...@gmail.com> wrote:
> At 9:35 PM -0700 8/15/2009, gsacks wrote:
>
> >733 mhz Quicksilver
> >bad RAM and a bad hard drive
>
> Both were bad?!
Yes, one stick of memory was bad (as per memtest) and the hard drive
had errors that I couldn't correct (I don't have any 3rd party
software for this, and I had spare drives anyway). Couldn't bad memory
cause disk problems?
>
> >so I replaced them and it worked
> >for a couple of months. After that it wouldn't start up at all -- the
> >light on the switch comes on and the fans spin for a few seconds, then
> >nothing. I checked the voltages on the power supply and they seem
> >fine. From various sources on the web, I surmised that either the
> >logic board or the processor was dead. Fortunately, I have a working
> >QS 2002 with an 800 mhz processor. I swapped processors, but then
> >neither computer worked. The original non-working one behaved the same
> >as before. The QS 2002 with the swapped processor started with no
> >chime and no video. There's nothing wrong with the 800 mhz processor
> >-- I put it back in the QS 2002 and it works fine. I'm thinking that
> >both the logic board and the processor are bad. How likely is this?
> >Any other suggestions for diagnosing the problem(s)?
>
> Have you replaced the PRAM battery?
I didn't replace it, but it checks out OK on a voltmeter.
> While working on these machines, were you properly grounded?
No, but it's so humid I'm not worried about static.
>
> When you swapped the processors, did you hit the CUDA button ONCE
> (reset the power manager
Yes (though I understand it's called the PMU button in G4's).
>
> - Dan.
> --
> - Psychoceramic Emeritus; South Jersey, USA, Earth.
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