How to change my MxM GPU from a different brand's GPU?

Hi,

I have a barebone laptop that is the duplicate of MSI GT60 0ND which contains GTX 670MX GPU in itself. The GPU died recently and I asked to my manufacturer that If I can replace the card with "GTX 670M" because I can't find a GTX 670MX. They told me that any GTX 600M series GPUs are suitable for my laptop.

Then, I bought a GTX 675M that is taken out of an Alienware laptop with 2 GPUs (SLI) and it can be considered as "new". I measured the sizes and everything fits but my laptop didn't accept it and said it is not compatible with my laptop.

Deleted all old GPU drivers with DDU and reinstalled "manually" with an older version of an update and tried couple different ones too but still it was saying that it was not compatible. I asked to a Turkish forum (Im Turkish) and someone told me that if the things that I mentioned above already doesn't work, there are some text files that you are making some changes and the pc accepts the GPU and I can find them on the internet but I couldn't find anything regarding that and this is my last stop. I need your help! Please help me to replace my old gpu with the new one that I have already bought but couldn't used.

Thank you very much.

Edit:

i7-3630qm
gtx 670mx
16 gb ram

 

You need to mod drivers and install them with driver signature enforcement disabled. How to mod drivers just google
How to Modify NVIDIA Notebook Driver .INF Files

 

Thank you very much for the answer, I will try this out: https://null-src.com/posts/nvidia-notebook-driver-inf-mod/post.php