Upgrading and Servicing Guide 3
Preparing the Computer
To avoid injury and equipment damage, always follow this procedure before opening the
computer:
1 Remove any of the following:
Memory card from the memory card reader
Optical disc (CD or DVD) from the optical drive
Pocket Media Drive from the Pocket Media Drive bay
2 Turn off the computer. Click the Windows Start Button
®
, click
the Arrow button next to the Lock button, and then click
Shut Down.
3 Disconnect the modem/telephone cable, if present.
4 Disconnect the power cord from the electrical outlet and then from the computer.
5 Disconnect all other attached cables (such as the keyboard, mouse, Ethernet, and
monitor).
6 Disconnect all external devices.
WARNING: Always disconnect the modem cord from the telephone system
before opening the cover.
WARNING: To reduce the risk of personal injury from electrical shock or hot
surfaces, disconnect the power cord from the electrical outlet. Then disconnect
the computer from the power source before removing the computer cover.
Failure to do so before you open the computer or do any procedures can result
in personal injury or equipment damage.