Replacing the system board

The system board is installed on a system board tray assembly. To remove the system board, you must first remove the system board tray assembly from the chassis. The tray assembly can be removed from the chassis without tools. The I/O shield is attached to the system board tray assembly and does not have to be removed when you remove the system board.

To remove the system board tray assembly:

1Turn off the computer, disconnect the power cord, modem cord (if installed), and all external peripheral devices.

2Remove the right and left side panels. (See “Removing the side panels” on page 19 for instructions. Also observe the “Static electricity precautions” on page 17.)

3Locate the system board release handle at the top of the system board tray assembly. Lift the handle up to disconnect the system board from the riser card and unlatch the tray assembly from the chassis.

System board release handle

System board tray assembly

56System Components