Now you carefully and slowly tighten the screws. Don't tighten one completely and then the other, but tighten the screws a little bit alternately so that the clamshell moves down onto the heating element slowly and equally. Don't over-tighten the screws, because you could damage the socket by breaking off the notches.
Now the evaporator is fixed to the socket. It should not move around, but be tightly fixed to the motherboard.
Finally you need to reattach the power supply. Don't forget to plug in the power supply connector, because you might have to remove the power supply again to do that.
