Re: Help! Chirping IIgs PS...

[pubpc1@library.ucla.edu]

eddy@cs.ucdavis.edu (arekusu) wrote:
>To my horror, this morning when I flipping my GS on it emmited a
>rapid chirping noise, power cycling with each chirp. (maybe 8-10
>times a second...)
>
>(system description at http://wwwcsif.cs.ucdavis.edu/~eddy/gs.html)
>
>Pulled all cards, plugged just the GS into a different wall outlet,
>tried again. Same thing. Reading the Hardware Ref, it mentions the
>power supply will exhibit this sort of behavior if it detects a
>short, or "no load"...
>
>any ideas? Common causes/cures?

I believe that your power supply is failing.  What you seem to
be observing is the power supply's safety feature, which prevents
the dying PS from destroying the GS logic board.

The cure will most likely involve getting a new power supply,
preferably with higher capacity (an overloaded PS may fail in
the above manner).

-Scott G.