PERST# is open .... tested in diode mode. Doesn't look good to me.
Posted after 2 hours 27 minutes 4 seconds:
Maybe I am on something ....
I found u512 and u513 .... luckily, it seems zotac follow the same schematics as gigabyte (so probably it's nvidia reference)
But as you can see below, u512 is not present. And looking at the board, it seems as it has never been there.
But, there are two pads looking weird. And this could be the missing 0.05 ohm resistor (r711).
So, I suppose that installing the resistor, should bypass the missing u512 and pex_rst should be restored.
But I wonder if I'm missing something. If I put there a 0 ohm resistor, could I do any damage? What is the purpose of u512?
They look as they are level translator.
Thanks in advance.