DELL 530b Manuale Utente

Pagina di 226
Removing and Installing Parts
107
3 Press the power button to ground the system board.
 
CAUTION: 
To guard against likelihood of electric shock, laceration by moving fan 
blades or other unexpected injuries, always unplug your computer from the 
electrical outlet before opening the cover.
4 Open the computer 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 static 
electricity, which could harm internal components.
Removing the Computer Cover
 
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.
 
CAUTION: 
Do not operate your equipment with any cover(s) (including computer 
covers, bezels, filler brackets, front-panel inserts, etc.) removed.
 
NOTICE: 
Ensure that sufficient space exists to support the removed cover. 
 
NOTICE: 
Ensure that you are working on a level, protected surface to avoid 
scratching either the computer or the surface on which it is resting.
2 Lay your computer on its side with the computer cover facing up.
3 Remove the two screws securing the cover, using a screwdriver.
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