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Dell Chromebook 3100 (Touch) Motherboard Replacement

What you need

  1. Dell Chromebook 3100 (Touch) Motherboard Replacement, Detach Bottom Cover: step 1, image 1 of 2 Dell Chromebook 3100 (Touch) Motherboard Replacement, Detach Bottom Cover: step 1, image 2 of 2

    • Unscrew the nine PH#0 captive screws on the bottom of the device.

    • Use a pick to run along the outside of the device popping all the clips. Prying should not be necessary.

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  2. Dell Chromebook 3100 (Touch) Motherboard Replacement, Motherboard: step 2, image 1 of 2 Dell Chromebook 3100 (Touch) Motherboard Replacement, Motherboard: step 2, image 2 of 2

    • Disconnect the daughterboard data cables.

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  3. Dell Chromebook 3100 (Touch) Motherboard Replacement: step 3, image 1 of 2 Dell Chromebook 3100 (Touch) Motherboard Replacement: step 3, image 2 of 2

    • Pull the daughterboard power cable out of its socket parallel to the motherboard.

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  4. Dell Chromebook 3100 (Touch) Motherboard Replacement: step 4, image 1 of 2 Dell Chromebook 3100 (Touch) Motherboard Replacement: step 4, image 2 of 2

    • Remove the M2x3 screw and cover, and disconnect the antenna cables.

    • Note: be careful on reassembly. Antenna connectors can be troublesome and are easy to damage.

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  6. Dell Chromebook 3100 (Touch) Motherboard Replacement: step 5, image 1 of 1

    • Disconnect the touchpad, keyboard, nad speakers where shown.

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  7. Dell Chromebook 3100 (Touch) Motherboard Replacement: step 6, image 1 of 1

    • Remove the four M2x4 screws, as well as the cover over the LVDS cable (top right).

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  8. Dell Chromebook 3100 (Touch) Motherboard Replacement: step 7, image 1 of 2 Dell Chromebook 3100 (Touch) Motherboard Replacement: step 7, image 2 of 2

    • Detach the LVDS cable.

    • The cable is held down with adhesive. Don't be shy about pulling it off the motherboard.

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  9. Dell Chromebook 3100 (Touch) Motherboard Replacement: step 8, image 1 of 1

    • Lift the motherboard out from the left side and pull away from the body of the chromebook.

    • During reassembly, it is much easier to insert the motherboard without the IO shield attached. The IO shield is easily inserted after the motherboard is in place.

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  10. Dell Chromebook 3100 (Touch) Motherboard Replacement: step 9, image 1 of 2 Dell Chromebook 3100 (Touch) Motherboard Replacement: step 9, image 2 of 2

    • Apply lateral force to the IO shield to break the adhesive holding it to the motherboard.

    • Save this IO shield to put on the new motherboard.

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  11. Dell Chromebook 3100 (Touch) Motherboard Replacement: step 10, image 1 of 1

    • During reassembly, make sure to include a thermal pad on the CPU. Usually you can reuse the one from the previous motherboard, but it's best to have access to a new pad in case the old one is not usable.

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Conclusion

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

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