7i76e source power

On my 7i76e card, it is not possible to power on the logic side over VIN. W1 is in left-hand position. I guess there is something broken after 24V accident.
If i connect 5V on logic side, the card work properly.
What can be broken here?
 

VIN never powers the logic (Ethernet/FPGA) side.

The logic side gets its power from P3 (5V!)
or TB3 pin 21..24 (unregulated 8 to 32V)

VIN powers the field I/O sections processor

I'm sorry for my unqualified wiring description. I try again 
12V to TB1 -> 5 and TB3 -> 21
 GND to TB1 -> 8 and TB3 -> 24 
W1 left-hand position 
But the logic side won’t start.

Sounds like the 5V regulator (either A8498 or AP64350 depending on 7I76E version)
had been damaged.

Thank you,
it seems there are some more on this board. So the best is send this card to Mesa and check on some more issues. Is it possible from europe, and how can i do this? I don´t will say that money don´t care but for me its important to have one card in stock.

You can email a a request for a RMA number to Mesa and
return the card to Mesa for analysis/repair/replacement