Zotac GeForce GTX1070 Mini 8GB 256Bit GDDR5

PN 92288-2N445-060Z8

SKU: ZT-P10700G-10M

I am currently trying to repair it. This is how it originally looked like::

I took off the rests of the damaged capacitors and the seemingly shorted MOSFET on the right side (MQ1) of the image which seemed to have a non-flat surface which gave me the impression that it could be the reason for the short-circuit and gently tried to clean up a bit, which uncovered the full damage to the PCB:

The MOSFET turned out not to be shorted, so I will put it back on again (I guess it makes sense to leave it off for now to make it easier to find the short).

There is a massive PCB damage, the top coating seems to have melted away and even the top copper layer has big holes, and the PCB material beneath it is burnt, most likely from high currents.

This is a photo from an angle to see the severity of the damage:

Now to my questions:

What are the chances for the destruction of the GPU?

What could I do to find the exact place of a short in the PCB layers? Is the short likely in the PCB or in a component?

Any ideas for a least invasive strategy to find the short?

I could desolder C389 and measure it’s value, since I guess that C626 and C214 might have the same value. But for all the components I marked with X, I do not know the value necessary. From my point of view it seems as if C389, C626, C214, the unmarked capacitor between C214 and C377 and C377 are all in parallel, so I guess I could replace them with more or less any value to stabilize the voltage?

I don’t have a good idea what the tiny capacitor above C626 is for.

I have measured the points on the frontside and backside that are shorted to Ground with red and marked the place where the damage is on the other side with “Holes in Backside”.