Dell OptiPlex GX240 - Manual (Page 72)

74 Installing Upgrades
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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 .
10 Close the computer cover , reconnect the computer and devices to
their electrical outlets, and turn them on.
NOTE: After you open and close the cover, the chassis intrusion detector
causes the following message to appear on the screen at the next computer
start-up:
ALERT! Cover was previously removed.
11 Reset the chassis intrusion detector by changing Chassis Intrusion to
Enabled or Enabled-Silent.
NOTE: If a setup password has been assigned by someone else, contact
your network administrator for information on resetting the chassis
intrusion detector.
12 If you removed a sound card, enter system setup, perform the
following steps:
a Enter system setup , select Integrated Devices, and change the
setting for Sound to On.
b Connect external audio devices to the audio connectors on the I/O
panel (see “ I/O Panel—Small Form-Factor, Desktop, and Mini-
Tower Computers ”).
13 If you removed an add-in network adapter, perform the following steps:
a Enter system setup , select Integrated Devices and change the
setting for Network Interface Card to On.
b 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 ”).