Control Panel Assembly..........................................................................................................................................89
Removing The Control Panel............................................................................................................................90
Installing The Control Panel.............................................................................................................................91
Removing The Control-Panel Module..............................................................................................................92
Installing The Control-Panel Module...............................................................................................................95
VGA Module............................................................................................................................................................96
Removing The VGA Module.............................................................................................................................96
Installing The VGA Module...............................................................................................................................97
Power Distribution Board Shroud...........................................................................................................................97
Removing The Power Distribution Board Shroud............................................................................................97
Installing The Power Distribution Board Shroud.............................................................................................98
Power Distribution Board.......................................................................................................................................99
Removing The Power Distribution Board.........................................................................................................99
Installing The Power Distribution Board........................................................................................................100
System Board........................................................................................................................................................100
Removing The System Board.........................................................................................................................100
Installing The System Board..........................................................................................................................101
4 Troubleshooting Your System...............................................................................................103
Safety First—For You And Your System...............................................................................................................103
Troubleshooting System Startup Failure..............................................................................................................103
Troubleshooting External Connections.................................................................................................................103
Troubleshooting The Video Subsystem................................................................................................................103
Troubleshooting A USB Device............................................................................................................................103
Troubleshooting A Serial I/O Device....................................................................................................................104
Troubleshooting A NIC..........................................................................................................................................104
Troubleshooting A Wet System............................................................................................................................105
Troubleshooting A Damaged System...................................................................................................................105
Troubleshooting The System Battery...................................................................................................................106
Troubleshooting Power Supplies..........................................................................................................................106
Troubleshooting Cooling Problems.......................................................................................................................107
Troubleshooting Cooling Fans..............................................................................................................................107
Troubleshooting System Memory.........................................................................................................................107
Troubleshooting An Internal USB Key..................................................................................................................108
Troubleshooting An SD Card................................................................................................................................108
Troubleshooting An Optical Drive.........................................................................................................................109
Troubleshooting A Tape Backup Unit...................................................................................................................110
Troubleshooting A Hard Drive..............................................................................................................................110
Troubleshooting A Storage Controller..................................................................................................................111
Troubleshooting Expansion Cards........................................................................................................................111
Troubleshooting Processors.................................................................................................................................112