CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in your Owner's Manual.
Shut down the computer through the Start menu.
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.
Disconnect any telephone or telecommunication lines from the computer.
Disconnect your computer and all attached devices from their electrical outlets, and
then press the power button to ground the system board.
CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before opening the cover.
NOTICE: Ensure that sufficient space exists to support the open cover—at least 30 cm (1 ft) of
desk top space.
Lay the computer on its side so that the arrow on the bottom of the computer
points up.
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.
