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Introduction
This guide explains how to assemble a Restart PC using a Lenovo X270 motherboard: wiring and gluing the power button and LED, installing the rear connector blocks, and mounting the motherboard and SSD into the housing.
What you need
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Replace the BIOS battery.
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Add a RAM stick.
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Start the board with the Windows disk already installed (it has a sticky note).
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Install the button on the front panel.
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Add solder to the button terminals.
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Tin the black and white wires.
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Solder the wires to the button terminals.
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Use the heat gun to install the heat shrink tubing.
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Insert the seal, then tighten the nut.
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Insert a long USB extension.
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Ensure the "blue USB bars" on the extension are facing upward (see photo).
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Secure the connector with 2 Phillips M3 screws.
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Drive the 4 M2 screws (see location in photo).
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Also install the speaker onto its bracket using 2 screws (see photo).
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Drive the 2 short M3 top screws WITHOUT TIGHTENING.
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Flip the assembly over.
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Insert a drop of threadlocker into the 2 free holes.
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Drive the 2 remaining screws in without overtightening at the end.
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Remove the 2 top screws and reinstall them after applying threadlocker.
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Tighten the 2 top screws firmly.
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For the left-hand connection, you must use a U-turn USB adapter (180° black).
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Route the cables under the motherboard.
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Apply a drop of threadlocker.
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Install one short M3 Torx screw per block WITHOUT TIGHTENING.
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Once all the blocks are installed, tighten the screws one by one.
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2x solid block.
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1x hub block.
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1x HDMI block.
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1x USB-C power block.
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1x RJ45 block.
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Add a drop of threadlocker into the M2 insert. This is located at the front of the PC, on the side opposite the USB port.
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Drive an M2 screw.
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Connect the USB extension socket.
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Add a zip tie to the HDMI cables and the adjacent USB-A cable.
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Trim the excess with flush cutters.
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Hide the "knot" under the cable.
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Apply a drop of threadlocker.
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Secure the air duct with 2 Phillips M2 screws.
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Repeat the green points for the dust screen.
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Connect the Wi-Fi antennas.
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The blue antenna goes on the USB socket side.
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The orange antenna goes on the air scoop side.
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Use a cable tie to organize the cables.
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Apply a bead of hot glue to the power button board connector.
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Install the upper plate.
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Secure with 4 black M3 Phillips flat-head screws (skip this step if parts are missing).
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