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Einleitung

This guide will show you how to replace the fan, heatsink, and thermal paste in a Lenovo ThinkPad T470S laptop. The thermal paste must be cleaned out and replaced from the computer when it is overheating or running more loudly than usual. Thermal paste is a thermally conductive chemical compound. It is commonly used as an interface between heat sinks and heat sources such as high-powered devices. The main role of the thermal paste is to eliminate the gaps of air and space from the interface area in order to maximize heat transfer and dissipation. After awhile, the thermal paste gets worn out, and it needs to be cleaned off and replaced. The device will be running more quietly and won’t be overheating after these steps are completed.

  1. Use a Phillips #000 screwdriver to remove the five 7 mm screws from the bottom of the laptop.
    • Use a Phillips #000 screwdriver to remove the five 7 mm screws from the bottom of the laptop.

    • Lift the bottom panel up and off the laptop.

  2. Loosen the four screws from the heatsink with a Phillips #000 screwdriver.
    • Loosen the four screws from the heatsink with a Phillips #000 screwdriver.

  3. Unplug the fan from the motherboard.
    • Unplug the fan from the motherboard.

  4. Remove the heatsink and fan from the laptop.
    • Remove the heatsink and fan from the laptop.

  5. Wipe off the old thermal paste with either 99% isopropyl alcohol or kimwipes.
    • Wipe off the old thermal paste with either 99% isopropyl alcohol or kimwipes.

  6. Follow this guide to reapply new thermal paste. Follow this guide to reapply new thermal paste.
Abschluss

To reassemble your device, follow these instructions in reverse order.

Matthew Milan

Mitglied seit: 14.01.2021

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