Dell OptiPlex 745 User Manual page 19

3. Disconnect your computer and all attached devices from their electrical outlets, and then press the power button to ground the system board.
4. If applicable, remove the computer stand (for instructions, see the documentation that came with the stand) and the cable cover, if attached (see
Cover (Optional)).
CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before removing the cover.
5. Remove the computer cover.
For your mini tower computer, see:
l
For your desktop computer, see:
l
For your small form-factor computer, see:
l
For your ultra small form-factor computer, see:
l
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.
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Removing the Computer Cover.
Removing the Computer Cover.
Removing the Computer
Removing the Computer
Cover.
Cover.
Cable