Use the plastic opening tool or your hand to carefully lift the left hand side of the motherboard away from the bottom plastic casing.

Lift and carefully pull out the motherboard to the left. The slots on the right side of the motherboard (for the USB and other connections) will pull free of the plastic housing when the motherboard is pulled to the left.

Warning: When removing the motherboard, be sure not to break off the plastic connector to the hard drive.

The motherboard will still be connected to the screen with black and white wires on the top left side. Remove the wireless network card from the motherboard to detach completely.