Lenovo 70A0 Maintenance Manual page 93

15. Connect all cables to the system board. See "Locating parts on the system board" on page 15.
16. Go to "Completing the parts replacement" on page 82.
The failing system board must be returned with microprocessor socket cover to protect the pins during
shipping and handling. Install the microprocessor socket cover removed from the new system board on
the failing system board.
To install a microprocessor socket cover, do the following:
1. Release the lever securing the microprocessor retainer and open the retainer to access the
microprocessor.
2. Grasp the microprocessor on the sides and lift it straight up and out of the socket. Do not touch the
contacts on the microprocessor socket.
3. Align the notches 1
socket. Lower the socket cover straight down into the microprocessor socket on the system board.
Note: Your microprocessor socket and cover might look slightly different from the illustration.
4. Carefully press the socket cover straight down until it is secured in the socket.
5. Lower the microprocessor retainer and then lower the lever to secure the retainer. Ensure that the
lever is securely locked into position.
of the microprocessor socket cover with the alignment keys
.
Chapter 6 Installing, removing, or replacing hardware
2 of the microprocessor
81