On Tue, Oct 16, 2001 at 07:16:04PM -0700, B. James Phillippe wrote:
> Hello,
> 
> I am trying to install a PC164 board into a custom mini-tower case with a
> standard ATX power-supply.  After having trouble, I did a Net search and
> discovered that the PC164 does not support soft-poweron, and thus doesn't
> work with a standard ATX power-supply.  Further, I learned that it can be
> made to work by either using a modified power-supply or shorting the PSON
> and GND pins of the ATX connector on the mainboard.  This effectively tells
> the power-supply that soft-poweron is always on, so the power-supply will
> activate at full power.  This is ideal for me because my power-supply has
> an override switch on the back.
> 
> I tested this theory by using a (plastic-handled!) screwdriver to short
> those pins and voila, instant power.  Just to be safe, I measured the
> impedence of those pins with an Ohmmeter beforehand. :-)
> 
> Anyway, has anyone does this before?  I have a soldering iron and eltronics
> solder and am willing to give it a go.  Anyone who has done this and had
> problems (or knows of other reasons I should proceed with caution) please
> let me know.

Use a conductive-ink pen (available from most electronics supply houses)
to short the pins, and save yourself the trouble of soldering, as well as
the danger of damaging your motherboard.

You could also just tie the pins together with wire-wrap wire; that's what
I did.