Dell OptiPlex GX50, User Manual

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Installing Upgrades 73
a
Enter system setup , select Integrated Devices and change the
setting for
Network Interface Card
to
Off
.
b
Connect the network cable to the add-in network adapter’s
connectors. Do not connect the network cable to the integrated
connector on the I/O panel (see “ I/O Panel—Small Form-Factor,
Desktop, and Mini-Tower Computers ”).
Removing an Expansion Card
CAUTION: Before you perform this procedure, see “ Safety
Instructions .”
NOTICE: Before disconnecting a device from the computer, wait 10 to 20
seconds after disconnecting the computer from its electrical outlet. Before
removing a component from the system board, verify that the standby power
light on the system board has turned off. To locate this light, see “
System
Board Components .”
1
Turn off the computer and devices, disconnect them from their
electrical outlets, and wait 10 to 20 seconds.
2
Open the computer cover .
3
In the small desktop computer, remove the expansion-card cage .
4
Press the lever on the expansion card retention arm and raise the
retention arm (see the illustration for your computer in “ Installing an
Expansion Card ”).
5
If necessary, disconnect any cables connected to the card.
6
Grasp the card by its top corners, and ease it out of its connector.
7
If you are removing the card permanently, install a filler bracket in the
empty card-slot opening.
If you need a filler bracket,
contact Dell .
NOTE: Installing filler brackets over empty card-slot openings is
necessary to maintain Federal Communications Commission (FCC)
certification of the computer. The brackets also keep dust and dirt out of
your computer.
8
Lower the retention arm and press it into place, securing the
expansion card(s) in the computer.
9
If you have a small desktop computer, replace the expansion-card cage .