Il giorno 25-04-2011 19:34, Bruce Johnson ha scritto:

> I don't think Apple introduced active thermal fan control until later in the
> the G4 series; the fans simply run all the time.

It's been a while since I sold my Beige G3 266...
but I seem to remember hearing its fans revving up sometimes (in really hot
days). A technician friend of mine confirmed they had variable speed.

So maybe even G3s had some kind of thermal control.

> If the fans are suddenly that much more noticeable, they're probably starting
> to fail.
If the fans have become noisy, that could be a sign of malfunction.
OTOH, if they have just become louder, maybe it's a sign of increased
temperature (too much dust inside the computer?).

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