Dell XPS 630i Service Manual page 11

NOTICE:
To disconnect a network cable, first unplug the cable from your computer
and then unplug the cable from the network device.
3 Disconnect all telephone or network cables from the computer.
4 Disconnect your computer and all attached devices from their electrical
outlets.
5 Press the power button to ground the system board.
NOTICE:
Before touching anything inside your computer, ground yourself by
touching an unpainted metal surface, such as the metal at the back of the computer.
While you work, periodically touch an unpainted metal surface to dissipate static
electricity, which could harm internal components.
Before You Begin
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