Dell ChengMing 3980, Service Manual

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5 Repeat the steps to install any additional PCIe expansion card.
6 Push the PCI bracket back to its position.
7 Replace the screw (6-32xL6.35) that secures the PCI bracket to the computer.
8 Install the:
a cover
9 Follow the procedure in After working inside your computer .
WLAN module
Removing the WLAN module
1 Follow the procedure in Before working inside your computer .
2 Remove the cover .
3 To remove the expansion card:
a Disconnect the WLAN module cable from the connector on the system board [1].
b Remove the screw (6-32xL6.35) that secures the PCI bracket to the computer [2].
c Pull the PCI bracket downward [3].
Removing and installing components 59