4.Remove the system board from the base enclosure (2).

5.(15.6-in models only) If it is necessary to remove the optical drive connector board from the system board, pull the optical drive connector board straight off the system board. The optical drive connector board is available using spare part number 535862-001.

Reverse this procedure to install the system board.

SIM

Description

Spare part number

 

 

SIM

536599-001

 

 

Before removing the SIM, follow these steps:

1.Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system.

2.Disconnect all external devices connected to the computer.

108 Chapter 4 Removal and replacement procedures