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简介

The heatsink (or heat sink) is a passive heat exchanger that transfers heat in a device. The heatsink disperses heat from another component in the device to prevent the device from overheating. In this device, the fan is attached to the heatsink. The fan cools the internal components and keeps them from overheating.

If you find that your laptop is experiencing the following symptoms, it may be time to replace the fan and heatsink assembly:

  • Easily overheats
  • Running at higher temperatures than normal
  • Loud whirring noises
  • Laptop is getting louder

Follow these instructions to remove and replace the fan and heatsink assembly in your Lenovo ThinkPad T450 laptop. Make sure to turn off your laptop and let it cool for 20 minutes before proceeding with the guide.

Don’t forget to follow our thermal paste application guide after you have removed your heat sink and are ready to reassemble your device.

  1. Using your hands, slide the two locking tabs away from each other to release the battery. Slide the battery up and out of the device. Slide the battery up and out of the device.
    • Using your hands, slide the two locking tabs away from each other to release the battery.

    • Slide the battery up and out of the device.

  2. Using the JIS #00 screwdriver, unscrew seven screws from the back cover.
    • Using the JIS #00 screwdriver, unscrew seven screws from the back cover.

    • These screws are not removable and will remain in the back cover.

    • Use the JIS #00 screwdriver to remove the single 2.8 mm screw from the back cover.

  3. Insert a plastic opening tool into the edges of the laptop and work your way around the edges to pry off the back cover from the device. Remove the back cover from the device. Remove the back cover from the device.
    • Insert a plastic opening tool into the edges of the laptop and work your way around the edges to pry off the back cover from the device.

    • Remove the back cover from the device.

  4. Lift up the black piece of tape and remove it to uncover the RAM sticks underneath. Lift up the black piece of tape and remove it to uncover the RAM sticks underneath.
    • Lift up the black piece of tape and remove it to uncover the RAM sticks underneath.

  5. Using your fingers, push the two clips securing the RAM away from each other to release the RAM. The RAM stick should pop up at a 30 degree angle.
    • Using your fingers, push the two clips securing the RAM away from each other to release the RAM.

    • The RAM stick should pop up at a 30 degree angle.

    • Remove the RAM stick from the device.

    • Repeat this step for any additional RAM sticks.

  6. Using the JIS #00 screwdriver, unscrew the four screws securing the fan and heatsink assembly to the motherboard.
    • Using the JIS #00 screwdriver, unscrew the four screws securing the fan and heatsink assembly to the motherboard.

    • These screws are not removable and will stay on the fan and heatsink assembly.

  7. Disconnect the fan and heatsink assembly from the motherboard using the plastic opening tool.
    • Disconnect the fan and heatsink assembly from the motherboard using the plastic opening tool.

  8. Lift up the fan and heatsink assembly and remove it from the device. When you reassemble your device, don't forget to reapply thermal paste to the back of the heatsink and fan assembly. For proper technique and thermal paste application, please visit the How to Apply Thermal Paste guide.
    • Lift up the fan and heatsink assembly and remove it from the device.

    • When you reassemble your device, don't forget to reapply thermal paste to the back of the heatsink and fan assembly. For proper technique and thermal paste application, please visit the How to Apply Thermal Paste guide.

结论

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

Don’t forget to reapply thermal paste to the fan and heatsink assembly when you reassemble your device.

For proper technique and thermal paste application, please visit the How to Apply Thermal Paste guide.

Justin Ogihara

于2017年09月18日注册

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