Dell Vostro 200 (Mid 2007) - Manual (Page 121)

Removing and Installing Parts
121
8 Replace the computer cover, reconnect the computer and devices to
electrical outlets, and then turn them on.
9 Remove the card’s driver from the operating system.
10 If you removed a sound card:
a Enter system setup (see "System Setup" on page 170), go to Onboard
Devices and select Integrated Audio and then change the setting to On.
b Connect external audio devices to the audio connectors on the back
panel of the computer. See "Back Panel Connectors" on page 18.
11 If you removed an add-in network connector:
a Enter system setup (see "System Setup" on page 170), go to Onboard
Devices and select Integrated NIC, and then change the setting to On.
NOTICE:
To connect a network cable, first plug the cable into the network device
and then plug it into the computer.
b Connect the network cable to the integrated connector on the back
panel of the computer. See "Back Panel Connectors" on page 18.
Bezel
CAUTION:
Before you begin any of the procedures in this section, follow the
safety instructions in the Product Information Guide.
CAUTION:
To guard against electrical shock, always unplug your computer from
the electrical outlet before removing the cover.