I inherited a Mid-2010 15" Macbook Pro (2.66 GHz Core i7 (I7-620M), A1286) from a relative a few years ago, and since then it started GPU-panicking (a la [here](https://apple.stackexchange.com/questions/130933/constant-kernel-gpu-panics-gpupanic-cpp127-on-mid-2010-macbook-pro-6-2), [here](https://apple.stackexchange.com/questions/179825/question-about-gpu-panic-on-mid-2010-macbookpro6-2) etc). AppleCare has obviously expired, and would not be an option since they'd inevitably ask for the receipt, which I doubt my relatives would ever be able to find (10 years later). I'm fairly certain I wouldn't be able to pull off the "make-a-fuss" approach suggested by a lot of answerers.

The standard correction for this nowadays seems to be [gfx.io](https://gfx.io/) (which is now the only software option, thanks to Apple discontinuing their software patch. Grrr). The problems with this are:-

1. that this forcefully disables the nVidia adapter (shifting graphics handling onto the CPU, which is not ideal when I want to use external monitors)
2. that this and similar patches have not always been reliable (I have memories of it not working consistently in the past).

I am aware of numerous other potential fixes (Kext purge, PRAM reset etc), but I have run through all of these at one point or another.

Anyway, so I was thinking about the process they used when they were running the official replacement program. Although I've read in [some](https://apple.stackexchange.com/a/130934/380771) [places (comment)](https://apple.stackexchange.com/q/179825/380771) that it's the logic board that was replaced, [this article](https://discussions.apple.com/docs/DOC-5681) suggests it's in fact the "defective video card" that is replaced. Either way, I'm assuming they just replaced the defective board with a newer revision - meaning that parts sites ([like this](https://www.thebookyard.com/)) probably have these revised boards knocking about that won't suffer the same issue.

Considering the still-incredible spec and condition of this machine, I don't mind spending the money for a new logic board if it means I can reliably use macOS on it. Of course, I'm only willing to spend the money if I'm sure it will actually solve the issue.

So my question is two-part:

1. **Was it definitely the logic board that caused this fault?**
2. **What is the part number for a logic board that is known to not suffer from the GPU Panic issue (assuming it actually entered circulation)?**