Introduction
This guide will demonstrate the step by step process on how to replace the motherboard in your Lenovo Z70-80.
Tools
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Use your fingers two push both latches away from each other to release the battery.
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Pull the battery out.
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Remove the two Phillips #0 screws from the bottom panel.
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Slide the panel down slightly, and then lift to pull it off.
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Remove the single 3mm Phillips #0 screw from the optical drive.
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Pull the optical drive out of the side.
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Remove the three 6mm Phillips #0 screws from the fan.
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Disconnect the fan from the motherboard by pulling up on the plug.
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Remove all the 17 7mm Phillips #0 screws.
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A sticker covers this screw. Remove this sticker to remove the screw.
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Remove the back cover.
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Pry the edges of the keyboard upwards using a spudger.
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Remove the five 3mm Phillips #0 screws.
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Unplug the two black cables from the motherboard.
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Remove the three 3mm screws from the motherboard.
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Remove the motherboard.
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To reassemble your device, follow these instructions in reverse order.