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Express sub card removal and installation - ThinkPad Edge E520, E525

For access, remove this FRU:

Removal steps of Express sub card

When installing: Make sure that the Express sub card is attached firmly to the system board.


Step Screw (quantity) Color Torque
1 M2 × 6 mm, wafer-head, nylon-coated (2) Black 0.181 Nm (1.85 kgfcm)

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