Formal testing no, I could tell the case plate would get hot and my understanding is when the thermal mass stabilizes at a temp the fan would run as normal, so this adds a bit more mass but in a way that’s easier for the heat to passively dissipate

Nothing noticeable the heatsink weighs 15.5 grams

There’s a thermal tape layer that came on the heatsink, stuck to the aluminum sheet that makes contact with the main board. It’s not as efficient as the LTT custom one I got the idea from but it does work! And no, it doesn’t fit in the case anymore

The heat sink stays cooler than just the case plate since the fins dissipate better and the fin area has less contact surface when you do, can leave my fingers on it for 10-15 seconds vs the plate at 3-5 seconds, but with that said I have to purposefully reach for it, my hand never makes contact with it on accident