Build Your Own ATX Power On Switch

Got a small problem.

have motherboard set up w/ fan, heatsink, hd, etc.
but the case I'm using is a Gateway case and the
wires coming from the power on switch (the external button
you press to turn the computer on) are in a 8x8 plastic
thing and there's 6 wires. The motherboard clearly
has 2 prongs set aside for an ATX-SW but the case
doesn't seem to support this. Does anyone know
how to build a simple power on switch that goes
to the motherboard? Or does anyone know which
two wires from an Gateway case are supposed to
go into the atx-sw?

e-mail me if u can.

Thanks,
A

alj wrote:
Got a small problem.

have motherboard set up w/ fan, heatsink, hd, etc.
but the case I'm using is a Gateway case and the
wires coming from the power on switch (the external button
you press to turn the computer on) are in a 8x8 plastic
thing and there's 6 wires. The motherboard clearly
has 2 prongs set aside for an ATX-SW but the case
doesn't seem to support this. Does anyone know
how to build a simple power on switch that goes
to the motherboard? Or does anyone know which
two wires from an Gateway case are supposed to
go into the atx-sw?

e-mail me if u can.

Thanks,
A


just check the wires with an ohm-meter
the swich is just a single pole , momentary "on"

just check the wires with an ohm-meter
the swich is just a single pole , momentary "on"

there's two prongs for atx, so the one thing is just
one wire?

Thanks,
A

alj wrote:
just check the wires with an ohm-meter
the swich is just a single pole , momentary "on"


there's two prongs for atx, so the one thing is just
one wire?

Thanks,
A

There are six wires. You are looking for the correct two out of those
six. Choose two at a time and connect the ohmmeter across the two.
Press and hold the power button. If the reading goes from near infinity
with the button unpressed to near zero with the button pressed, you have
found the correct pair. There are 15 (ie 5+4+3+2+1) possible pairings
from the six wires. Keep trying pairs until you find the correct one,
then connect one of those two wires to one of the pins on the
motherboard. Then connect the other wire to the other pin on the
motherboard. It doesn't matter which of the pair of wires goes to which
pin of the two pins.

Matt wrote:
alj wrote:

just check the wires with an ohm-meter
the swich is just a single pole , momentary "on"



there's two prongs for atx, so the one thing is just
one wire?

Thanks,
A


Second draft:

There are six wires. You are looking for the correct two out of those
six. Choose two at a time and connect the ohmmeter across the two.
Press and hold the power button. If the reading goes from near infinity
with the button unpressed to near zero with the button pressed, you have
found the correct pair. There are 15 (ie 5+4+3+2+1) possible pairings
from the six wires. Keep trying pairs until you find the correct pair,
then connect one of those two wires to one of the pins on the
motherboard. Then connect the other wire to the other pin on the
motherboard. It doesn't matter which wire of the pair of wires goes to
which
of the two pins.