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Lenovo Essential G555-0873 CPU Replacement

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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: crwdns2935265:01crwdnd2935265:01crwdnd2935265:01crwdne2935265:0

    • 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: crwdns2935265:02crwdnd2935265:01crwdnd2935265:01crwdne2935265:0

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

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  3. Lenovo Essential G555-0873 CPU Replacement, Fan: crwdns2935265:03crwdnd2935265:01crwdnd2935265:01crwdne2935265:0

    • 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: crwdns2935265:04crwdnd2935265:01crwdnd2935265:01crwdne2935265:0

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

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  6. Lenovo Essential G555-0873 CPU Replacement: crwdns2935265:05crwdnd2935265:01crwdnd2935265:01crwdne2935265:0

    • 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: crwdns2935265:06crwdnd2935265:01crwdnd2935265:01crwdne2935265:0

    • 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: crwdns2935265:07crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 Lenovo Essential G555-0873 CPU Replacement: crwdns2935265:07crwdnd2935265:02crwdnd2935265:02crwdne2935265:0

    • Pull the heat sink assembly out of the laptop.

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  9. Lenovo Essential G555-0873 CPU Replacement, CPU: crwdns2935265:08crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 Lenovo Essential G555-0873 CPU Replacement, CPU: crwdns2935265:08crwdnd2935265:02crwdnd2935265:02crwdne2935265:0

    • 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: crwdns2935265:09crwdnd2935265:01crwdnd2935265:01crwdne2935265:0

    • 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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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 crwdns2935289:0Appalachian State University, Team S2-G6, Menagarishvili Spring 2019crwdne2935289:0

APSU-MENAGARISHVILI-S19S2G6

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