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Lenovo Essential G555-0873 CPU Replacement

Introduction

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.

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  1. Lenovo Essential G555-0873 CPU Replacement, Bottom Panel: étape 1, image 1 de 1

    • 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.

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  2. Lenovo Essential G555-0873 CPU Replacement: étape 2, image 1 de 1

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

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  3. Lenovo Essential G555-0873 CPU Replacement, Fan: étape 3, image 1 de 1

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

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  5. Lenovo Essential G555-0873 CPU Replacement: étape 4, image 1 de 1

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

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  6. Lenovo Essential G555-0873 CPU Replacement: étape 5, image 1 de 1

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

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  7. Lenovo Essential G555-0873 CPU Replacement, Heat Sink: étape 6, image 1 de 1

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

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

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  8. Lenovo Essential G555-0873 CPU Replacement: étape 7, image 1 de 2 Lenovo Essential G555-0873 CPU Replacement: étape 7, image 2 de 2

    • Pull the heat sink assembly out of the laptop.

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  9. Lenovo Essential G555-0873 CPU Replacement, CPU: étape 8, image 1 de 2 Lenovo Essential G555-0873 CPU Replacement, CPU: étape 8, image 2 de 2

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

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  10. Lenovo Essential G555-0873 CPU Replacement: étape 9, image 1 de 1

    • 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.

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Conclusion

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

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Michael Elledge

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Appalachian State University, Team S2-G6, Menagarishvili Spring 2019 Membre de l'équipe Appalachian State University, Team S2-G6, Menagarishvili Spring 2019

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