Contents1 Working on Your Computer....................................................................................................... 5Before Working Inside Your Computer.....................................................................................................................5Turning Off Your Computer....................................................................................................................................... 6After Working Inside Your Computer........................................................................................................................62 Removing and Installing Components..................................................................................... 8Recommended Tools................................................................................................................................................ 8Removing the Cover..................................................................................................................................................8Installing the Cover...................................................................................................................................................9Removing the Front Bezel......................................................................................................................................... 9Installing the Front Bezel........................................................................................................................................ 10Removing the Drive Cage....................................................................................................................................... 10Installing the Drive Cage.........................................................................................................................................12Removing the Wireless Local Area Network (WLAN) Card................................................................................... 13Installing the WLAN Card....................................................................................................................................... 14Removing the Optical Drive.................................................................................................................................... 15Installing the Optical Drive..................................................................................................................................... 15Removing the Hard Drive........................................................................................................................................15Installing the Hard Drive......................................................................................................................................... 16Removing the Intrusion Switch...............................................................................................................................16Installing the Intrusion Switch................................................................................................................................16Memory Module Guidelines................................................................................................................................... 17Removing the Memory............................................................................................................................................17Installing the Memory.............................................................................................................................................18Removing the Coin-Cell Battery..............................................................................................................................18Installing the Coin-Cell Battery...............................................................................................................................19Removing the System Fan.......................................................................................................................................19Installing the System Fan........................................................................................................................................20Removing the Speaker............................................................................................................................................20Installing the Internal Speaker............................................................................................................................... 22Removing the Power Switch...................................................................................................................................23Installing the Power Switch....................................................................................................................................23Removing the Input/Output(I/O) Panel....................................................................................................................24Installing the Input/Output(I/O) Panel..................................................................................................................... 25Removing the Power Supply Unit........................................................................................................................... 25Installing the Power Supply Unit............................................................................................................................ 26Removing the Heat Sink..........................................................................................................................................27Installing the Heat Sink...........................................................................................................................................29