jotm

I saw this advice from you in some random post: " ..attach a copper sheet with holes (as thick as possible) to the end of the heatsink before the fan intake using thermal paste ..."
Could you point me to some thread, instructions or pictures of how i should do it? I have an msi withy insane clocks on it's gtx 1070, it is beating 1080 ti benchmarks, but it is toasty as hell. and i'm using liquid metal. lol.