Dell OptiPlex SX270 - Manuel (Page 5)

Re p l a c i n g t h e S y s t e m B o a r d 3
CAUTION: Before you begin this procedure, follow the safety
instructions in the Setup and Quick Reference Guide.
CAUTION: To prevent static damage to components inside your
computer, discharge static electricity from your body before you
touch any of your computer’s electronic components. You can do
so by touching an unpainted metal surface on the computer
chassis.
1 Shut down the computer through the Start menu.
2 Ensure that your computer and attached devices are turned off. If your
computer and attached devices did not automatically turn off when
you shut down your computer, turn them off now.
NOTICE: To disconnect a network cable, first unplug the cable from your
computer and then unplug it from the network wall jack.
3 Disconnect any telephone or telecommunication lines from the
computer.
4 Disconnect your computer and attached devices from their electrical
outlets, and then press the power button to ground the system board.
5 Remove the computer from the mounting plate (if used).
6 Remove the cable cover, if it is attached.
7 Remove the stand, if it is attached.
CAUTION: To guard against electrical shock, always unplug your
computer from the electrical outlet before removing the cover.
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 any static electricity that could harm internal components.
8 Remove the following components in the order in which they are listed
(for detailed removal steps, see the
User’s Guide):
a Module device
b Hard drive
c Computer cover
0Y0561.book Page 3 Thursday, May 8, 2003 9:45 AM