It's a first generation Pro and had the very common 747 taxying on the runway sound. After a while of putting it off, I finally ordered some thermal paste and got to work.
The process took a little over an hour bc I'm stupid and the YouTube tutorial I was following kinda sucked. Forgot to put one screw back in but all in all, it was a success.
The system is whisper quiet now. Just here to say this maintenance is well worth it. If anyone is on the fence, do yourself a favor and go through with it.
One tip I do have: Take pictures when you pull the covers off so you have a quick reference of what screws go where. It may save you a few minutes.