morphling1
08-20-2002, 03:15 AM
To begin, I'm running athlon xp 1700+ at 1950Mhz and 2.1V (my standard 24/7 setting not max.) ,and last week I noticed that my 5V rail dropped a lot to ~4.3-4.4V so I checked my atx connector, first thing I notice was how hot it was, and then saw that 3 pins were a little burned (from 3.3, 5, 12V ground), I was thinking my atx connector wasn't in good contact, so I decided to put my psu back in in run my comuter little less overclock with lower core voltage. So I was running at 1800 Mhz and 1.95V (my lowest after volt mod on Epox 8kha+) and the I noticed that if I pushed connector very hard into to mobo voltages got a little better ~4.7V, but after I while they would still drop to 4.45V even at that "low" speed and voltage. But yesterday I decided that I will switch back to my old 300W Macase psu from 350W. And the what happened, the atx connector from psu was literaly welded to the connector on motherboard, and after using some extreme force I manage to pull it off. Connector was melted and destroyed on those three pins and the same on motherboard, so I was in trouble.
Here are pics.
http://www2.arnes.si/~mlivak/burned%20atx1.jpg
http://www2.arnes.si/~mlivak/burned%20atx2.jpg
So now the rescue mission, after some delicate cutting where everything is packed with condensators around atx connector I manage to remove all pins with my solder iron,and little by little a removed that burned plastic connector too. And after I saw how thin and small those connectors were, I decided to make something a little more bullet proof to high electric current that runs through that pins. I took 1mm solid copper wire and cut 12mm pins from it, I placed those pins in holes from previous ones, and then solder all of them in, then I bend them a little so they were all aligned, and ready for my old 300W psu with good atx power connector.
Here is how it looks now:
http://www2.arnes.si/~mlivak/new%20atx.jpg
I put everything back in the case, and then plug in the atx power connector, which now went in very,very hard, but the contact was now great. So back to my original oc. of 1950@2.1V and to my surprise 5V rail was at 4.95V idle and 4.9V full load, this are the best 5V voltages, I ever saw with this psu, I actualy changed this psu because my volatges were so low when oc. So with my new connector, my cheap 300W psu could very well handle my power hungry athlon xp without any problem at all.
Here are pics.
http://www2.arnes.si/~mlivak/burned%20atx1.jpg
http://www2.arnes.si/~mlivak/burned%20atx2.jpg
So now the rescue mission, after some delicate cutting where everything is packed with condensators around atx connector I manage to remove all pins with my solder iron,and little by little a removed that burned plastic connector too. And after I saw how thin and small those connectors were, I decided to make something a little more bullet proof to high electric current that runs through that pins. I took 1mm solid copper wire and cut 12mm pins from it, I placed those pins in holes from previous ones, and then solder all of them in, then I bend them a little so they were all aligned, and ready for my old 300W psu with good atx power connector.
Here is how it looks now:
http://www2.arnes.si/~mlivak/new%20atx.jpg
I put everything back in the case, and then plug in the atx power connector, which now went in very,very hard, but the contact was now great. So back to my original oc. of 1950@2.1V and to my surprise 5V rail was at 4.95V idle and 4.9V full load, this are the best 5V voltages, I ever saw with this psu, I actualy changed this psu because my volatges were so low when oc. So with my new connector, my cheap 300W psu could very well handle my power hungry athlon xp without any problem at all.