On Dec 1, 2005, at 12:10 PM, TVirkkala wrote:
OK, my beige G3 AIO (Molar), the 266MHz model upgraded to 366MHz
and running Panther and OS 9.1 as Classic, with maxed-out memory,
squeals for a while at start-up. It doesn't quite start
immediately; OS X completely loads and Classic begins loading when
the squealing kicks in.
Well, it makes some high-pitched whiney noises for a while and then
stops.
It sounds like the flyback transformer on the monitor. An easy,
cheap, and potentially dangerous fix since it involves the high
voltage components of the monitor. This is a common repair on CRTS.
It could also be the fan in the power supply, or possibly the HDD,
but those would be more likely to start the moment the system was
turned on. The CRT has to warm up sometimes for these things to
happen. Flyback hum is really high frequency nails-on-chalkboard
kinda stuff.
Remotely, it could be something really strange with Classic. Try
setting it to not start automatically and see if you get the noise.
Or plug headphones into the speaker jack to disable the internal
speaker to rule out something odd being fed to the speaker.
--
Bruce Johnson
This is the sig who says 'Ni!'
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