Replacing the I/O board
WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the
steps in Before working inside your computer. After working inside your computer, follow the instructions in After working inside
your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/
regulatory_compliance.
Procedure
1 Align the USB ports on the I/O board with the slots on the palm-rest assembly.
2 Align the screw hole on the I/O board with the screw hole on the palm-rest assembly and replace the screw (M2x3) that secures the
I/O board to the palm-rest assembly.
3 Connect the I/O-board cable to the I/O board and close the latch to secure the cable.
4 Slide the ngerprint-reader cable into the connector on the I/O board and close the latch to secure the cable.
Post-requisites
1 Replace the display assembly.
2 Replace the heat sink.
3 Replace the fan.
4 Replace the wireless card.
5 Replace the base cover.
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Replacing the I/O board 49
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