Hi, my friend has a dell laptop and last year the GPU overheated and the screens display was all distorted. I removed the motherboard and heated the GPU and reinstalled the board and that fixed it but the problem occured again. My friend had me order a replacment motherboard this time and I was wondering if maybe I should remove the purple foam padding on the heat sync and change it with a copper shim instead so the new motherboard does not also overheat. Or would I be best off just keeping the factory padding installed? Below is a photo of the area I am talking about.