CAUTION: Before you begin any of the procedures in this section, follow the steps in "CAUTION: Safety Instructions."
CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before opening the cover.
Perform an orderly computer shutdown using the operating system
menu.
NOTICE: To disconnect a network cable, first unplug the cable from your
computer, and then unplug it from the network wall jack.
Turn off any attached devices and disconnect them from their
electrical outlets.
Disconnect the computer power cable from the wall outlet, and then
press the power button to ground the system board.
If you have installed a padlock through the padlock ring on the back
panel, remove the padlock.
NOTICE: Ensure that sufficient space exists to support the open cover—at
least 30 cm (1 ft) of desktop space.
Lay the computer on its side as shown in the illustration.
Open the cover:
Facing the back of the computer, press the release button on the
right side of the computer with one hand while pulling up on the
top of the cover with the other hand.
Press the release button on the left side of the computer with one
hand while pulling up on the top of the cover with the other hand.
Hold the bottom of the computer with one hand, and then pull
open the cover with the other hand.
