To remove the CPU, first remove the optical drive...

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...the rear cover...

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...the motherboard EMI shield...

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...and the thermal module.

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To remove the CPU, lift the lever out of its clip on the socket and swing the lever straight up.

Note: Images shown may be from another motherboard

Carefully lift the microprocessor up out of the socket...

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Caution: The pins of the CPU are fragile and easily bent. Leave the processor in the socket until you are ready to replace it with a new one.

To install the processor, make sure you identify pin 1 position by noting the yellow mark on the corner of the chip assembly. 

Align the processor to pin 1 on the motherboard...

...and insert the processor into its socket. 

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Lock the connector lever to hold the microprocessor in place, making sure the lever fits snugly into the clip

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