I have a Q700 I picked up at a recycling center and tried a while back
to get working, but didn't have any luck, but also didn't spend much
time on it, could be a bad power supply. At any rate, my recollection
is that on the one I had at least, the capacitors on the motherboard
were all the yellow tantalum capacitors, not the silver can
electrolytic type that fail and leak in the well-known fashion.
Tantalum capacitors can fail too, I have seen it happen on at least
two older PC's (I assume it could happen on Macs too)...and they
either fail silently and likely short out, or they can explode (blow
the top off) in an impressive pop...I have observed one of each, and
when they blow, they get your attention. :-) But to your original
question, if it is like mine, and I'm guessing it would be, they are
the more reliable tantalum capacitors that should not need replacement.
Wesley
Quoting Thomas Pfaff <tpfaff...@gmail.com>:
Curious... do you know if the capacitors on the Quadra 700 mamaboard do
better than the ones in the IIci and such? Capacitors from the pre-china
days tend to have very long lifespans but Apple got an early start on
shipping "lesser componentry" on their boards.
Thomas
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