Introduction
Silicone grease, also known as thermal paste, is a substance used to improve the thermal conductivity between the CPU or GPU chip and the heat sink in a laptop. Over time, the silicone grease can dry out, harden, or become contaminated with dust, which can reduce its effectiveness in transferring heat away from the CPU or GPU.
If the silicone grease is not replaced, it can cause the laptop to overheat, which can lead to performance issues, crashes, or even permanent damage to the CPU or GPU. Overheating can also cause the laptop's fans to work harder, which can lead to more noise and faster wear on the fans.
Tools
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Push the switch to the right to release the battery.
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Slide the battery upwards to remove it from the laptop.
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Use a hard card like a credit card to pry the keyboard upward carefully.
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Remove the keyboard ribbon cable
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Use ESD safe brushes and/or compressed air to remove dirt and build up on the motherboard as gently as you can.
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Use high concentration alcohol to clean the top of the CPU until no thermal paste on it.
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Wait for the alcohol to dry completely.
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Squeeze new thermal paste onto the CPU. Apply evenly and thinly.
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To reassemble your device, follow these instructions in reverse order.