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Introduction |
| Use this guide to replace the fan and heat sink in a Lenovo ThinkPad T470 laptop. | | | The heat sink transfers heat from the laptop’s CPU to the fan, which redirects the heat away from the laptop’s internal components. The fan and heat sink work together to prevent the laptop from overheating, which can cause damage to the device. | | | Some signs that your fan and heat sink may be faulty include audible humming, rattling, or overheating. Before attempting to replace the fan and heat sink, see if you can [link|https://www.lifewire.com/fix-cpu-fan-error-4687270|troubleshoot] any fan and heat sink issues. Always clean the thermal paste when separating the heatsink and CPU and [guide|744|reapply fresh paste] before reassembling. | | | Before beginning this guide, make sure to [link|https://www.youtube.com/watch?v=biKzU3S69x8&ab_channel=LaptopReviews|disable the internal battery], power down your device, and disconnect from any external power sources. |
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