MNT Reform CPU Module Replacement

はじめに

The CPU module is plugged into motherboard connector U1. The module contains the main SoC (System-on-Chip) and memory.

The original release of MNT Reform ships with the Boundary Devices Nitrogen8M_SOM CPU module, however alternative CPU modules are in development, and you can also develop your own

Please note that removing the CPU module will require re-applying thermal paste.

必要な工具と部品

手順1 Remove Bottom Plate Screws

MNT Reform CPU Module Replacement, Remove Bottom Plate Screws: 手順 1、 1の画像 1

Remove the following screws securing the transparent acrylic bottom plate to the main box:
Ten M2×6mm silver Phillips screws

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手順2 Remove Bottom Plate

MNT Reform CPU Module Replacement, Remove Bottom Plate: 手順 2、 1の画像 1

Lift the bottom plate and set it aside.
Before servicing anything on the inside, make sure to remove all battery cells.

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手順3 Remove Battery Cells

MNT Reform CPU Module Replacement, Remove Battery Cells: 手順 3、 2の画像 1

MNT Reform CPU Module Replacement, Remove Battery Cells: 手順 3、 2の画像 2

Pull out the eight battery cells one by one, and set them aside safely.
Do not use a metal tool to remove the batteries. You may accidentally short-circuit the metal pins of the battery holders.
When replacing the batteries, pay attention to the polarity! Inserting a cell the wrong way in will damage your device.
The circuit board indicates the + and - orientation for each cell.

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手順4 Remove Heatsink Screws

MNT Reform CPU Module Replacement, Remove Heatsink Screws: 手順 4、 1の画像 1

Remove the following screws securing the heatsink:
Four M2×12 Philips screws

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手順5 Remove the Heatsink

MNT Reform CPU Module Replacement, Remove the Heatsink: 手順 5、 1の画像 1

Gently pull the heatsink up.
Take care not to lose the four cylindrical plastic spacers supporting the heatsink.
When replacing the heatsink, remember to place the spacers over the screw holes before screwing down the heatsink. It may be helpful to use tweezers to align the spacers if placing the heatsink on top shifted them.
When replacing the heatsink into the laptop, you will need to apply new thermal paste. We have a thermal paste guide that makes replacing the thermal compound easy.
If you need to remove the heatsink frequently, it is possible to replace the thermal paste with a 0.5mm thermal pad instead.

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手順6 Disconnect CPU Module Ribbon Cable

MNT Reform CPU Module Replacement, Disconnect CPU Module Ribbon Cable: 手順 6、 2の画像 1

MNT Reform CPU Module Replacement, Disconnect CPU Module Ribbon Cable: 手順 6、 2の画像 2

Gently lift the black tab on the ribbon cable connector, then slide the ribbon cable out.

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手順7 Release CPU Module

MNT Reform CPU Module Replacement, Release CPU Module: 手順 7、 1の画像 1

Release the tabs on each side of the CPU module by pulling them at the same time.
These tabs lock the module in place and releasing them will cause the module to "pop" up, similarly to a RAM stick on other laptop computers.

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手順8 Remove CPU Module

MNT Reform CPU Module Replacement, Remove CPU Module: 手順 8、 1の画像 1

Pull the CPU module out of its socket on the motherboard.
To avoid damaging its socket on the motherboard, do not excessively lift the free end of the CPU module.

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