Thanks for your reply. I'm a regular viewer of GN and have seen that video. He never removes the shroud from the heatsink. I'm gonna give it a go this weekend. Cant get one of those fancy white ASUS 3080 Strix cards....may as well make the best of my aging 10 series.
He also never actually explains the actual shunt mod that the video title claims...I guess that's in another video somewhere else...... He does show you where you'd shunt it. I may follow up on that some day, but really what's the point.... 5 extra frames?
Shunt mod is basically shorting out the shunt so it no longer measures current flow properly, or more recently, you solder another resistor on top of it, so that it cuts the resistance in half, effectively halving the current measurement. Tricks the card into ignoring its limits.
Information like that can be found on the more hardcore overclocking forums.
Most I do these days is slap a water block on a card. That gets you 95% of the way there.