Disconnect any external cables attached to the rear panel of the system.
Be sure to note where each cable attaches to the rear panel. See "Locating Rear Panel Features".
Disconnect the internal cables from the main logic board.
Press the tab on the cable connector to detach each cable.
Loosen the three captive screws securing the main logic board to the rear panel.
Be sure to remove the SSP paddle card and all PCI cards prior to removing the main logic board. See "Before You Begin".
Slide the main logic board away from the rear panel until it is free.
Pull the bottom edge of the main logic board away from the machine, and lift the board out of the system.
Place the main logic board on an antistatic mat.