Do you have two P-III with Vcore of 1.7 to test?

My friend was able to fix it. It had some SMD that needed to be changed.
Took time and money.
Now it works.

Mamba wrote on 2023-06-25, 05:50:

My friend was able to fix it. It had some SMSD that needed to be changed.
Took time and money.
Now it works.

Good!
Could you please explain a little more, might help others.
I'd really like to know what it was.

Ciao!

Here the last part of the work (Google translate):

“The next section where to intervene is the one near/between the agp and pci slot. The 1000uF capacitors have been replaced, only the welds and the pcb are damaged. I think he used a very corrosive flowing liquid, which damaged the tracks below. I understand this from the welding points that have been riveted / squeezed with something (a hammer I think ...) to adhere to the pcb. But, as you can see from the photos I attach, the pcb is damaged.

The capacitors are:

EC45

EC13

EC20

These capacitors work and pollute the vcc3 line, which is in common, according to the scheme you sent me, also to socket1 and socket2"

And then the solution:

"As I had anticipated in previous emails, I intervened in the area I had indicated to you, the capacitors on the vcc3, which is in common with the cpu.

I tried to repair the contacts, unwelding and icing the 3 capacitors on several occasions, in the end I succeeded. Welds not nice, but functional.

I restored/rebuilt a track adjacent to one of the offending capacitors and the system also recognized the second cpu."

Mamba wrote on 2023-06-25, 13:25:

Here the last part of the work (Google translate): […]
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Here the last part of the work (Google translate):

“The next section where to intervene is the one near/between the agp and pci slot. The 1000uF capacitors have been replaced, only the welds and the pcb are damaged. I think he used a very corrosive flowing liquid, which damaged the tracks below. I understand this from the welding points that have been riveted / squeezed with something (a hammer I think ...) to adhere to the pcb. But, as you can see from the photos I attach, the pcb is damaged.

The capacitors are:

EC45

EC13

EC20

These capacitors work and pollute the vcc3 line, which is in common, according to the scheme you sent me, also to socket1 and socket2"

And then the solution:

"As I had anticipated in previous emails, I intervened in the area I had indicated to you, the capacitors on the vcc3, which is in common with the cpu.

I tried to repair the contacts, unwelding and icing the 3 capacitors on several occasions, in the end I succeeded. Welds not nice, but functional.

I restored/rebuilt a track adjacent to one of the offending capacitors and the system also recognized the second cpu."

So, it was physical damage.
Hope you'll bench it soon and post some pics.
Have fun!