2

3

4

1

1 front I/O panel connector

2

jumper

3

sound card cable

4sound card connector

If you are installing a sound card, remove the jumper on the end of the front I/O panel. Then connect one end of the cable to the sound card and the other end of the cable to the connection on the front I/O panel from which you removed the jumper.

NOTICE: To connect a network cable, first plug the cable into the network device and then plug it into the computer.

10Replace the computer cover, reconnect the computer and devices to electrical outlets, and then turn them on.

11If you installed a sound card:

a Enter system setup (see "System Setup" on page 111), go to Onboard Devices and select Integrated Audio, and then change the setting 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 back panel. See "Back Panel Connectors" on page 14.

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Removing and Installing Parts

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Dell DCSM, PY349 owner manual Removing and Installing Parts