9. Replace the computer cover, (see Replacing the Computer Cover), reconnect the computer and devices to electrical outlets, and then turn them on.
10. Uninstall the driver for the removed card. See the documentation that came with the card.
11. If you removed a sound card:
a. Enter system setup (see Entering System Setup), select Audio Controller, and then change the setting to On.
b. Connect external audio devices to the audio connectors on the back panel of the computer.
12. If you removed a network connector card:
a. Enter system setup (see Entering System Setup), select Network Controller, and then change the setting to On.
b. Connect the network cable to the network connector on the back panel of the computer.
Installing the Optional Speaker
1. Follow the procedures in Before You Begin.
2. Remove the computer cover (see Removing the Computer Cover).
3. If you already have a speaker installed, remove the old speaker:
a. Disconnect the speaker cable from the speaker connector on the system board.
b. Simultaneously grasp the bottom of the speaker with your index finger and press down on the latch release tab with your thumb.
c. Slide the speaker up and out of the three speaker slots.
4. To install the speaker:
a. Align the speaker behind the tabs on the three speaker slots.
b. Slide down the speaker until the speaker and the latch release tab click into place.
c. Connect the speaker cable to the speaker connector on the system board.
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