Chapter 2 Servicing the Main Logic Board and Components 85
What Next
To replace the main logic board, complete this task:
■ “How to Replace the Main Logic Board” on page 85
How to Replace the Main Logic Board
Before You Begin
You should have removed all removable components from the old main logic board
before removing the board from the chassis. You can transfer the components to the
replacement board after it is installed in the chassis. For more information, see:
■ “How to Remove the Main Logic Board” on page 82
Caution – Use an antistatic mat when working with the main logic board. An
antistatic mat provides the cushioning required to protect under the board, to
prevent the 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 chassis. Doing so can damage the main logic board.
Be sure to complete these tasks before starting the procedure:
■ “How to Power Off the System” on page 5
■ “How to Avoid Electrostatic Discharge” on page 35
What to Do
Note – You should already have removed the system from the rack and placed it on
a workbench with all the power cords disconnected.
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