Which of the ICs on the Raspberry Pi 5 need the 4 thermal silicone pads that come with this heatsink?update: if you look at the bottom of the heatsink, you can see where the pads s...

Which of the ICs on the Raspberry Pi 5 need the 4 thermal silicone pads that come with this heatsink?

update: if you look at the bottom of the heatsink, you can see where the pads should be placed.