Control Panel Assembly..........................................................................................................................................90
Removing The Control Panel............................................................................................................................91
Installing The Control Panel............................................................................................................................. 92
Removing The Control-Panel Module.............................................................................................................. 93
Installing The Control-Panel Module............................................................................................................... 96
VGA Module............................................................................................................................................................97
Removing The VGA Module............................................................................................................................. 97
Installing The VGA Module...............................................................................................................................98
Power Distribution Board Shroud...........................................................................................................................98
Removing The Power Distribution Board Shroud............................................................................................ 98
Installing The Power Distribution Board Shroud............................................................................................. 99
Power Distribution Board..................................................................................................................................... 100
Removing The Power Distribution Board.......................................................................................................100
Installing The Power Distribution Board........................................................................................................101
System Board........................................................................................................................................................101
Removing The System Board......................................................................................................................... 101
Installing The System Board.......................................................................................................................... 102
4 Troubleshooting Your System............................................................................................... 105
Safety First—For You And Your System............................................................................................................... 105
Troubleshooting System Startup Failure.............................................................................................................. 105
Troubleshooting External Connections.................................................................................................................105
Troubleshooting The Video Subsystem................................................................................................................ 105
Troubleshooting A USB Device............................................................................................................................ 105
Troubleshooting A Serial I/O Device.................................................................................................................... 106
Troubleshooting A NIC..........................................................................................................................................106
Troubleshooting A Wet System............................................................................................................................107
Troubleshooting A Damaged System................................................................................................................... 107
Troubleshooting The System Battery................................................................................................................... 108
Troubleshooting Power Supplies..........................................................................................................................108
Troubleshooting Cooling Problems.......................................................................................................................108
Troubleshooting Cooling Fans.............................................................................................................................. 109
Troubleshooting System Memory.........................................................................................................................109
Troubleshooting An Internal USB Key..................................................................................................................110
Troubleshooting An SD Card................................................................................................................................ 110
Troubleshooting An Optical Drive.........................................................................................................................111
Troubleshooting A Tape Backup Unit...................................................................................................................111
Troubleshooting A Hard Drive.............................................................................................................................. 112
Troubleshooting A Storage Controller..................................................................................................................112
Troubleshooting Expansion Cards........................................................................................................................113
Troubleshooting Processors.................................................................................................................................114