12. Pivot the microprocessor retainer downward to close the retainer.
Figure 49. Closing the microprocessor retainer
13.Gently press down the small handle 1 , and then push the handle inward to secure it. Then gently press down the small handle 2 and push the handle inward to lock the microprocessor retainer into position and secure the new microprocessor in the socket.
Note: There are two marks on the microprocessor retainer. Ensure that you close the small handle
marked with 
first, and then close the small handle marked with 
. Always follow the correct sequence when you close the small handles.
Figure 50. Securing the microprocessor in the socket
14.Reinstall the heat sink and fan assembly. See “Replacing the heat sink and fan assembly” on page 78.
15.If you are instructed to return the old microprocessor, follow all packaging instructions and use any packaging materials that are supplied to you for shipping.
16.To complete the replacement, go to “Completing the parts replacement” on page 104.
Replacing the system board
Attention: Do not open your computer or attempt any repair before reading and understanding the “Important Safety Information” on page 1.
This section provides instructions on how to replace the system board.
Chapter 10. Replacing FRUs 99
