ContentsNotes, Cautions, and Warnings...................................................................................................21 Working on Your Computer.......................................................................................................7Before Working Inside Your Computer.....................................................................................................................7Turning Off Your Computer.......................................................................................................................................8After Working Inside Your Computer........................................................................................................................82 Removing and Installing Components.....................................................................................9Recommended Tools................................................................................................................................................9Removing the VESA Stand........................................................................................................................................9Installing the VESA Stand.......................................................................................................................................10Removing the Back Cover.......................................................................................................................................10Installing the Back Cover........................................................................................................................................11Removing the Memory............................................................................................................................................11Installing the Memory.............................................................................................................................................12Removing the VESA Mount Bracket.......................................................................................................................12Installing the VESA Mount Bracket........................................................................................................................13Removing the Converter Board..............................................................................................................................13Installing the Converter Board................................................................................................................................14Removing the System-Board Shield.......................................................................................................................14Installing the System-Board Shield........................................................................................................................14Removing the Coin-Cell Battery..............................................................................................................................15Installing the Coin-Cell Battery...............................................................................................................................15Removing the Optical Drive....................................................................................................................................15Installing the Optical Drive.....................................................................................................................................17Removing the Hard Drive........................................................................................................................................17Installing the Hard Drive.........................................................................................................................................18Removing the Intrusion Switch...............................................................................................................................19Installing the Intrusion Switch................................................................................................................................20Removing the Wireless Local Area Network (WLAN) Card...................................................................................20Installing the WLAN Card.......................................................................................................................................21Removing the Power-Supply Fan............................................................................................................................21Installing the Power-Supply Fan.............................................................................................................................22Removing the Power Supply Unit (PSU).................................................................................................................22Installing the Power Supply Unit............................................................................................................................23Removing the Heat-Sink Assembly.........................................................................................................................24Installing the Heat-Sink Assembly..........................................................................................................................24