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
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