Hi,

I have a seemingly uncommon PowerMac clone here, and I can't get it to boot.

I had it in storage, and something made a nest inside and ruined the logic board. I accidentally came across a replacement one a couple years later, but it had a red x drawn across it, which I assume means it is broken.

And broken it is! I can get it to chime, but nothing I do will allow it to go beyond that. No video. Nothing.

I don't think it's the memory, but who knows.

The CPU card is okay, because it won't chime if I take it out.

Obviously the board I got is at least as broken as the original, but at least it's intact with minimal corrosion and remnants of nests and stuff.

I tried transplanting some of the capacitors (which are known to be at least partially functional) to see if that would help. It did not.

I was even going to go as far as swapping the soldered down, surface mount ROM chips from the other board (those are also known to be good), but I gave up on that after wasting several hours removing them from the old board.

I also speculated that perhaps the power supply is at fault. Since it's the only compatible one I have, I unfortunately can't verify that hypothesis.

Any Ideas?

If I can't get it fixed, I'll hunt around for another, hopefully working replacement logic board.

c