Dell OptiPlex GX150 - Manual (Page 112)

ALERT! Cover was previously removed.
13. Reset the chassis intrusion detector by changing Chassis Intrusion to Enabled or Enabled-Silent.
14. If you installed a sound card, perform the following steps:
a. Enter system setup , select Integrated Devices, and change the setting for Sound to Off.
b. Connect external audio devices to the sound card's connectors. Do not connect external audio devices to the microphone,
speaker/headphone, or line-in connectors on the I/O panel (see "
I/O Panel ").
15. If you installed 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 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 ").
Removing an Expansion Card in the Small Form-Factor System
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. 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 ").
4. If necessary, disconnect any cables connected to the card.
5. Grasp the card by its top corners, and ease it out of its connector.
6. 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 .
7. Lower the retention arm and press it into place, securing the expansion card(s) in the computer.
8. Close the computer cover , reconnect the computer and devices to their electrical outlets, and turn them on.
ALERT! Cover was previously removed.
9. Reset the chassis intrusion detector by changing Chassis Intrusion to Enabled or Enabled-Silent.
10. If you removed a sound card, 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 ").
11. If you removed an add-in network adapter, perform the following steps:
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:
NOTE: If a setup password has been assigned by someone else, contact your network administrator for information on resetting the
chassis intrusion detector.
CAUTION: Before you perform this procedure, see " Safety Information ."
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 ."
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.
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:
NOTE: If a setup password has been assigned by someone else, contact your network administrator for information on resetting the
chassis intrusion detector.