On Sun, 3 Jun 2001, Dale Botkin wrote:

> On Sun, 3 Jun 2001, Olin Lathrop wrote:
>
> > >>
> > If PC power supply set to 110V and then plug it to 220V. Does PC power
> > supply damage?
> > I'm interested to know this because most of the power supply today are auto
> > volt. I just want
> > to know how well protected the PC power supply.
> > <<
> >
> > If the power supply has a select switch, then it's not auto volt.  You
> > should assume it will be damaged by 220V on the 110V setting.
>
> And I can confirm this from experience.  Connecting a PC power supply
> designed for 110V to 220 will damage the power supply.
>

  Conclusions: it was a funny question !

But damage aren't very big: two switching transistors, one varistor and
some time a fuse too, for push-pull switching supply, almost nothing
except varistor and fuse for UC3584 and one MOS-FET power switching
version.
ATX versions may have much more damage...
Vasile

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