Starting pc shorting pwr header pins

[zrx1100]

I have a problem that I think might be to do with my front panel power switch. I have heard that it is possible to short the correct header pins marked pwr and something else momentarily and the pc should start. Could someone explain exactly what to do, is it the pins that are actualy on the mb, if so which ones? I have found online the docs for the motherboard that show the front panel pin makeup, but not too sure which ones.

http://support.packardbell.com/uk/item/index.php?i=instr_columbiagx_jumpers&ppn=p700401801"

The front panel layout is near the bottom of the doc.

 

[edfair]

Easiest way is to see what color of wires come off the power switch, disconnect the header that has the same color wires, then momentarily touch a screwdriver blade to the 2 pins you uncovered.
Marked FP BUT IN and GND opposite it.

Ed Fair
Give the wrong symptoms, get the wrong solutions.

 

[zrx1100]

Thanks for that, the power switch is on a mini board with no actual wires coming from it, just a few from the board. But as you have identified the correct pins I take it it is just a matter of carefully touching those two on the mb itself, is it safe as there is power obviously going through the mb?

 

[edfair]

There is nothing on the pins that is dangerous. Most are LED with 5v thru a 330 ohm resistor so shorting them is protected.
The power switch to ground is an input to a latching circuit and it is protected, too.
No danger to you and no danger to the M/B. At least if the board is fully ATX compatible.

Ed Fair
Give the wrong symptoms, get the wrong solutions.

 

[zrx1100]

Thanks for that, didn't help me though as the system still did not come to life, so I suppose that rules out a duff power switch. I have a previous post going with the actual problem but at least I now know how to short the pins, thanks.

 

[edfair]

Then will require a VOM and measuring the P/S's power up circuitry, pins 14(green) and ground. This is generated off the standby circuitry on the M/B.


Ed Fair
Give the wrong symptoms, get the wrong solutions.