19 minutes ago, Reonu said:
And if for some reason I had to replace the thermal putty, what should I buy?
Imo anything priced ok. You wont have many choices because it's far less common on consumer electronics than paste and pads but they don't deal with high heat output components either. When there's low demand for consumers there tends to be less crappy options. Let's say around 5W/mK, if you want some number to go by