Help with a dead??? Asus P3V4X

[Goaty]

Hi,

I have an Asus P3V4X mobo that was working, was fiddling with it one day, then I couldn't get it to power on.

Was never sure if it was bad "case wires", (they were in bad shape and I have since thrown out that case), or the mobo.

Not my main box, so I let it sit for awhile, now I would like to get it working for my son's computer.

I am trying to test it "bare" with known-to-be-good:

- 300 watt PS
- P3 650 CPU
- 128 meg PC100 memory stick

just to see if I can get it to power on and make the CPU fan move.

My question is this: How do I trigger the ATX Power Supply to turn on when the mobo is not attached to a case? Can I jumper the "ATX on" pins?
The manual shows 2 pins: a hot & a ground. But I seem to remember the case connector covering 3 pins and there is an unmarked pin next to the ATX ground.

Any suggestions much appreciated!

 

[LoneWolf1]

All you should have to do is quickly short-out the two ATX Power Switch pins. If you don't already know, they are the 6th & 7th pins on the bottom row of the Panel Connections.

 

[Goaty]

<< All you should have to do is quickly short-out the two ATX Power Switch pins. If you don't already know, they are the 6th & 7th pins on the bottom row of the Panel Connections. >>



When you say "short-out" is that the same as quickly sliding a jumper on and then off? As opposed to leaving the jumper on 6 & 7?

Or should I not use a jumper and just use a piece of metal ( paper clip ? ) to bridge 6 & 7?

Thanks for responding, and sorry for being an idiot. My electrical knowledge is limited

 

[LoneWolf1]

Just use a paper clip or a butter knife or something to momentarily(sp?) bridge the two pins. You only need a jumper in place long enough for the system to power up.

 

[Rebels7]

I use a flat blade screwdriver to do this. Make sure you do not touch anything else!!!!!!

 

[Goaty]

<< I use a flat blade screwdriver to do this. Make sure you do not touch anything else!!!!!! >>



And if maybe I did touch something else before that would explain why my motherboard won't fire up an ATX power supply anymore?

Shorting 6 & 7 doesn't work

When I first had the problem I was working on my case cooling and the front cover pulled too far from the mobo. The "case wires" had been pulled tight and stripped a bit. They could have shorted a couple pins in there I guess. Could that have fried my mobo? I know the PS is good, was being used on a different computer.

Thanks!