Cooling Fans........................................................................................................................................34Removing A Cooling Fan.............................................................................................................. 34Installing A Cooling Fan................................................................................................................ 35Cooling Shroud................................................................................................................................... 36Removing The Cooling Shroud.................................................................................................... 36Installing The Cooling Shroud...................................................................................................... 36System Memory...................................................................................................................................37General Memory Module Installation Guidelines.........................................................................38Removing Memory Modules.........................................................................................................38Installing Memory Modules...........................................................................................................39Dell PERC H310 Card And Risers....................................................................................................... 40Removing The Dell PERC H310 Card...........................................................................................40Installing The Dell PERC H310 Card............................................................................................. 41Removing The Dell PERC H310 Card Riser..................................................................................42Installing The Dell PERC H310 Card Riser....................................................................................43System Battery.....................................................................................................................................43Replacing The System Battery...................................................................................................... 43Processor.............................................................................................................................................45Removing The Processor..............................................................................................................45Installing The Processor................................................................................................................ 47Power Supply Unit.............................................................................................................................. 48Removing The Power Supply Unit................................................................................................49Installing The Power Supply Unit..................................................................................................50System Board...................................................................................................................................... 50Removing The System Board....................................................................................................... 50Installing The System Board.......................................................................................................... 514 Troubleshooting Your System............................................................................ 53Safety First—For You And Your System.............................................................................................. 53Troubleshooting External Connections............................................................................................. 53Troubleshooting the Video Subsystem.............................................................................................. 53Troubleshooting a USB Device...........................................................................................................53Troubleshooting a Serial I/O Device.................................................................................................. 54Troubleshooting A NIC....................................................................................................................... 54Troubleshooting A Wet System.......................................................................................................... 55Troubleshooting A Damaged System.................................................................................................55Troubleshooting the System Battery..................................................................................................56Troubleshooting The Power Supply................................................................................................... 57Troubleshooting Cooling Problems................................................................................................... 57Troubleshooting Cooling Fans........................................................................................................... 57Troubleshooting System Memory...................................................................................................... 58Troubleshooting A Hard Drive............................................................................................................59