Sun Microsystems 220R service manual How to Replace the Main Logic Board, What Next

3.13.3What Next

4To replace the main logic board, complete this task:

Section 3.14 “How to Replace the Main Logic Board” on page 119

3.14How to Replace the Main Logic Board

3.14.1Before You Begin

All removable components should have been removed from the old main logic board prior to removing the board from the system. You can transfer the components to the replacement4 board after it is installed in the system. For more information, see:

Section 3.13 “How to Remove the Main Logic Board” on page 116

Caution - Use an antistatic mat when working with the main logic board. An antistatic mat provides the cushioning required to protect the board, to prevent the main logic board from flexing, and to provide antistatic protection.

Caution - Perform this procedure on a workbench. Sun Microsystems does not support changing the main logic board while the system is installed in a rack.

Caution - Do not attempt to install components on the main logic board while it is outside the system. Doing so can damage the main logic board.

4Be sure to complete this task before starting the procedure:

Section 2.1 “How to Power Off the System” on page 54

3.14.2What to Do

1.Remove the main logic board from its antistatic packaging and place it on an antistatic mat.

Caution - Handle the main logic board by the back panel or edges only.

2.Set the jumper settings on the replacement main logic board so that they match the jumper settings on the original main logic board.

Servicing the Main Logic Board and Components 119