Hey folks, Before I begin, I want to assure everyone that I did search first. Now, on to my problem. I have a 4,1 Macbook that I decided to do a complete overhaul too. I replaced the display cable, swapped out my 2nd failed HDD for a Samsung SSD, and yesterday cleaned off my 5 year old thermal paste and applied some new AS5. The first two pictures are of the application before cleaning (done by the factory). The latter two are of my application before mounting. Unfortunately, I discovered a little too late that I needed to remove the fan to remount the heat sink. So during that process, stuff accidentally touched the compound and moved it around a bit. Here's my question: What are those silver/brown things on the green part of the GPU? And is it ok if I created a bridge between a few of them with the paste?