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Introdução

Use this guide to replace the CPU in the Lenovo Essential G555-0873. This requires removing the back panel, removing the fan, and removing the heat sink. The only tool you need to complete these steps is the screwdriver listed below.

  1. Unscrew the two 5.1 mm screws that secure the bottom cover.
    • Unscrew the two 5.1 mm screws that secure the bottom cover.

    • Note that the screws will not come all the way out of the sockets.

  2. Lift from the notch until the back panel comes up.
    • Lift from the notch until the back panel comes up.

  3. Disconnect the fan from the motherboard by pulling the plug shown in the picture.
    • Disconnect the fan from the motherboard by pulling the plug shown in the picture.

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  5. Unscrew the three 4.6mm screws shown in the picture.
    • Unscrew the three 4.6mm screws shown in the picture.

  6. Gently lift the fan straight up until it is lifted out of the case.
    • Gently lift the fan straight up until it is lifted out of the case.

  7. Unscrew the four 7.3 mm screws shown in the picture.
    • Unscrew the four 7.3 mm screws shown in the picture.

    • Note that springs are attached to the screws. Do not remove the springs.

  8. Pull the heat sink assembly out of the laptop. Pull the heat sink assembly out of the laptop.
    • Pull the heat sink assembly out of the laptop.

  9. Use a flat-head screwdriver on the hinge shown, and turn counter-clockwise to the unlock position Use a flat-head screwdriver on the hinge shown, and turn counter-clockwise to the unlock position
    • Use a flat-head screwdriver on the hinge shown, and turn counter-clockwise to the unlock position

  10. Remove the CPU
    • Remove the CPU

    • There will be old thermal paste on the CPU and heat sink which should be wiped off using microfiber cloth.

    • Before putting the heat sink back in, a small droplet of thermal paste should be applied onto the center of the CPU.

Conclusão

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

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