For the latest AM4 Ryzen socket, see below for correct rack installation position.
Remove motherboard AMD socket mounting rack, keep the bottom plate on the
back of the motherboard. Install the copper heatsink block using 4
H-3
Apply thermal paste to the heatpipe groove on both side panels using the
dumbbell shaped tool. Apply a thin layer of thermal paste to the copper plate
groove using the dumbbell tool.