Re: //gs Power Supply questions/problems

[jesse@dino.gi.alaska.edu (Jesse P. Atencio)]

In article <3ok896INNi4o@england.cis.ohio-state.edu>,
forest@cis.ohio-state.edu (Forest Hursey) wrote:

> I am having some problems with the power supply on my //gs ... it
> makes a loud whining noise that increases in volume when a drive is
> accessed or there is a heavy load on the processor and sometimes it
> just shuts off and refuses to turn on again.  If I shut it down it
> "chirps" rapidly and then dies down slowly.
> 
> I suspect a bad transformer since I have heard this chirping problem
> thousands of times on Mac+ that have had flyback tranformers go bad.
> I was wondering if anyone elses has had this problem or experienced
> anything similar.

> Should the //gs power supply be able to handle this ok ?

Forest:

  Your //GS power supply is certainly overtaxed right now.  The
accelerator by itself draws quite a bit of power.  The sound you hear is
certainly a sign that your power supply cannot handle the load.  The
chirping sound is most likely a bad capacitor, not a transformer.  The
failure is caused by the increase in heat.  You should get a heavy duty GS
power supply from someone like ABC Direct.  They sell the Applied
Engineering heavy duty supply.  Call them at (800) 481-6782 or send them
e-mail at ABCDIRECT@aol.com for a catalog.  They carry the entire AE
product line.