Introduction

An overheating laptop, or an always on noisy fan, can be caused by a clogged heatsink, clogged fan, broken fan, or bad thermal paste.

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  • The battery is located on the front right corner of the laptop.

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  • With one finger on the raised grip, slide the latch towards the front of the laptop.

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  • Pull the battery out towards the side.

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  • Lift the battery straight up, out of the computer.

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Image 1/1: The screws circled are not necessary to remove.
  • Unscrew all of the visible screws on the bottom of the laptop.

  • The screws circled are not necessary to remove.

  • Keeping track of which hole each screw goes in will speed up reassembly.

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  • Unscrew the screws located beneath the battery.

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Image 1/3: Fully detach the strip. Image 2/3: Fully detach the strip. Image 3/3: Fully detach the strip.
  • Using a set of case opening tools, pry open the left and right sides of the black plastic strip above the keyboard.

  • Fully detach the strip.

These last two pictures seem to show the same thing.

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  • Unscrew the two screws near the top of the keyboard.

Make sure to include screw lengths to the nearest mm.

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Image 1/2: The keyboard is still connected by a ribbon cable to the motherboard. Image 2/2: The keyboard is still connected by a ribbon cable to the motherboard.
  • Lift the keyboard by holding the middle top of the keyboard.

  • The keyboard is still connected by a ribbon cable to the motherboard.

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Image 1/3: Remove keyboard. Image 2/3: Remove keyboard. Image 3/3: Remove keyboard.
  • Carefully pull upwards on the ribbon cable to detach.

  • Remove keyboard.

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  • Unscrew the screws on either side of the power button circuit board.

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  • Pull upward on the small white ribbon cable to detach from circuit board.

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  • Unscrew the screw located on the left side of the optical drive near the heat sink cover in the middle of the laptop.

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  • Using spudger, push the optical drive out to the right.

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  • Disconnect both speaker connectors located near the center of the laptop.

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  • Unscrew all visible screws on the heat sink shield.

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  • Disconnect the monitor connector.

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Image 1/3: Image 2/3: Image 3/3:
  • Starting from the front right corner pry apart the black bottom from the gray top.

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  • Set aside the top half.

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  • Unscrew the remaining screws on the heatsink and fan brackets.

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Image 1/3: Remove the heatsink and fan. Image 2/3: Check the heatsink fins and fan for any dust build-up. If any is found use compressed air to clean. Image 3/3: Check the heatsink fins and fan for any dust build-up. If any is found use compressed air to clean.
  • Disconnect the fan power connector.

  • Remove the heatsink and fan.

  • Check the heatsink fins and fan for any dust build-up. If any is found use compressed air to clean.

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Image 1/1: Use a q tip to remove the majority of the thermal paste.
  • Clean the old thermal paste off the CPU and heatsink.

    • Use a q tip to remove the majority of the thermal paste.

    • Use an isopropyl alcohol soaked q tip to further clean remaining thermal paste.

    • Dry and clean both surfaces with another q-tip.

  • Once completely clean, apply a rice grain sized amount of new thermal paste to the CPU and reattach the heatsink and fan.

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Conclusion

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

Kiril Lange

Member since: 09/22/2014

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USF Tampa, Team 3-2, Brown Fall 2014 Member of USF Tampa, Team 3-2, Brown Fall 2014

USFT-BROWN-F14S3G2

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