Hello.

I bought a cheap damaged graphics card (GV-N66TOC-2GD) to be repaired. I think it's flooded. The PC does not recognize the card. After checking the voltage on the core is about 0.9 V and on Vram 0 V. The resistance on the Vram lines looks good (about 90 Ohm).
I located and replaced the defective 0 Ohm resistor (R628) but nothing has changed. I also replaced the ncp5392p chip with a new one.

The mosfets and drivers of the mosfets seem to be working .

Maybe GPU flooding can lower the voltage on Vram to 0 V?
Does anyone have schematic to this card?

Warus23
Hello, maybe need resoldering or replacing this ic:

Hello! I got absolute identical situation, on same card.
Voltage of memory do not appears, an VCORE is about 0.9v.
This is my old broken videocard, Idk what happens with it, but I have no picture on screen and probably no voltage on VMEM could be a problem.
I will try to follow recomendations and resolder controller or electrical key that recommended to resolder e.t.c.

I still not found boardview for concretly this videocard, even in 2023.
If anyone have boardview for GV-N66TOC 2 or 3GD, please, help.

Thank you all for your help!

Did you managed to fix it ?, i also have a waterdamaged GPU that i need to fix