Are we to remove the aluminum heat shield prior to fitting the main sink? (cpu- thermal pad - heatsink)Or does this just go on the outside of the shield? (cpu- thermal pad - alumin...

Are we to remove the aluminum heat shield prior to fitting the main sink? (cpu- thermal pad - heatsink)
Or does this just go on the outside of the shield? (cpu- thermal pad - aluminium shield - heatpad - heatsink)