Dell XPS 15Z (L511Z, Mid 2011) - Manual (Page 11)

Before You Begin 11
6 Disconnect all attached devices from your computer.
CAUTION: To help prevent damage to the system board, remove the main battery
(see "Removing the Battery" on page 17) before working inside the computer.
7 Remove the battery (see "Removing the Battery" on page 17).
8 Turn the computer top-side up, open the display, and press the power
button to ground the system board.
CAUTION: 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.
book.book Page 11 Friday, February 21, 2014 12:07 PM