Lenovo M57e - ThinkCentre - 9481 Hardware Maintenance Manual page 142

5. Remove the microprocessor from the system board socket by lifting it out of the socket.
Important: Do not touch the gold contacts on the bottom of the microprocessor. If you must touch the
microprocessor, touch only the sides.
a. Take notice of the orientation of the notches
installing the microprocessor on the system board.
b. Do not drop anything on the socket while it is open. Keep all contacts as clean as possible.
6. Make sure that the microprocessor retainer is fully open.
7. Position the microprocessor so that the notches on the microprocessor are aligned with the tabs in
the microprocessor socket.
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ThinkCentre Hardware Maintenance Manual
1 on the microprocessor. This is important when