Remove the cables from the fan and unscrew the heatsink.

The heatsink has many metal pieces jutting out from its base and is located under the fan.

Carefully disconnect the tabs on the edges of the motherboard.

Unscrew the screws holding the motherboard in place. Set them aside.

On the underside of the motherboard, disconnect the keyboard from the motherboard.

Once ALL cables are disconnected, carefully remove the motherboard.