There are 7 SMALL BLACK screws marked in GREEN, Remove these.

There are 3 WHITE "RIBBON CABLES", marked i n RED and plugged into GREEN ports. Grab it the connection point and gently, but firmly pull up. It should disconnect smoothly and have blue plastic on the tip. This picture shows the Cables already removed.

There are 6 REMOVABLE wire bundle connection points, marked in ORANGE. 2 are RED, 4 are WHITE. Be VERY CAUTIOUS when disconnecting the wire bundles. DO NOT pull on the wires when trying to disconnect. Instead gently, but firmly pry the plastic connector glued to the wires, from the plastic connector secured to the board.

On the reverse side of the motherboard, there are 3 microprocessors marked in DARK BLUE.