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Lenovo ThinkPad L390 Fan and Heat Sink Replacement

Inleiding

If you have noticed that your laptop tends to overheat constantly, your Lenovo ThinkPad L390 shuts down more than normal, or other issues like your fan making loud noises or not spinning, it is likely time to replace your fan/heat sink assembly. Having a faulty fan can lead to other problems such as damage to vital components such as the CPU, hard drive, or video card due to prolonged over heating.

Before you follow the steps of this guide, make sure to check the connections of the fan, to clean the air vents to the fan of debris, and to make sure that the Power Plan (Power Saver mode) is not on as these are common issues that can cause your fan to decrease in performance without it needing to be replaced.

Note:

  • Before beginning this guide, make sure to power off your laptop completely and disconnect from any external power source.
  • Some parts are small and can be easily lost, so place them in a safe place.
  • Before replacing the fan, you should remove the battery first.

Wat je nodig hebt

  1. Lenovo ThinkPad L390 Fan and Heat Sink Replacement, Lower Case: stap 1, afbeelding 1 van 2 Lenovo ThinkPad L390 Fan and Heat Sink Replacement, Lower Case: stap 1, afbeelding 2 van 2

    • Before you begin, discharge your laptop battery below 25%. A charged lithium-ion battery can catch fire and/or explode if accidentally punctured. Lay the device down with the lower case facing up.

    • Power off your laptop and disconnect the charger and any peripheries before beginning disassembly.

    • Unscrew the nine 5 mm Phillips #00 screws that secure the lower case.

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  2. Lenovo ThinkPad L390 Fan and Heat Sink Replacement: stap 2, afbeelding 1 van 2 Lenovo ThinkPad L390 Fan and Heat Sink Replacement: stap 2, afbeelding 2 van 2

    • Insert an opening tool in the gap between the lower case and the chassis.

    • Pry around the entire perimeter of the lower case until it fully releases.

    • Lift the lower case up and off.

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  4. Lenovo ThinkPad L390 Fan and Heat Sink Replacement, Lenovo ThinkPad L390 Battery Disconnection: stap 3, afbeelding 1 van 1

    • Use your fingernails or two opening tools to gently "walk" the battery connector directly out of its socket.

    • Do not pull on the wires.

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  5. Lenovo ThinkPad L390 Fan and Heat Sink Replacement, Fan and Heat Sink: stap 4, afbeelding 1 van 1

    • Remove the four 4 mm Phillips #00 screws that secure the heat sink.

    • Remove the 6 mm Phillips #00 screw that secures the fan.

    • Do not begin to remove the fan just yet.

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  6. Lenovo ThinkPad L390 Fan and Heat Sink Replacement: stap 5, afbeelding 1 van 2 Lenovo ThinkPad L390 Fan and Heat Sink Replacement: stap 5, afbeelding 2 van 2

    • Use two opening tools or your fingernails to gently "walk" the fan connector directly out of its socket.

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  7. Lenovo ThinkPad L390 Fan and Heat Sink Replacement: stap 6, afbeelding 1 van 2 Lenovo ThinkPad L390 Fan and Heat Sink Replacement: stap 6, afbeelding 2 van 2

    • Grip the fan/heat sink assembly from both sides and lift it up and out of the chassis.

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Conclusie

To reassemble your device, follow the above steps in reverse order.

Take your e-waste to an R2 or e-Stewards certified recycler.

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Bryana Obeso

Lid sinds: 08/28/24

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University of North Texas, Team 5-4, Kilpatrick Fall 2024 Lid van University of North Texas, Team 5-4, Kilpatrick Fall 2024

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