VGA Module............................................................................................................................................................96
Removing The VGA Module............................................................................................................................. 96
Installing The VGA Module...............................................................................................................................97
System Board..........................................................................................................................................................98
Removing The System Board...........................................................................................................................98
Installing The System Board.......................................................................................................................... 100
4 Troubleshooting Your System...............................................................................................101
Safety First—For You And Your System............................................................................................................... 101
Troubleshooting System Startup Failure.............................................................................................................. 101
Troubleshooting External Connections.................................................................................................................101
Troubleshooting The Video Subsystem................................................................................................................101
Troubleshooting A USB Device............................................................................................................................ 101
Troubleshooting A Serial I/O Device.................................................................................................................... 102
Troubleshooting A NIC..........................................................................................................................................102
Troubleshooting A Wet System............................................................................................................................103
Troubleshooting A Damaged System................................................................................................................... 103
Troubleshooting The System Battery................................................................................................................... 104
Troubleshooting Power Supplies..........................................................................................................................104
Troubleshooting Cooling Problems.......................................................................................................................105
Troubleshooting Cooling Fans.............................................................................................................................. 105
Troubleshooting System Memory.........................................................................................................................105
Troubleshooting An Internal USB Key..................................................................................................................106
Troubleshooting An SD Card................................................................................................................................ 106
Troubleshooting An Optical Drive.........................................................................................................................107
Troubleshooting A Tape Backup Unit...................................................................................................................108
Troubleshooting A Hard Drive.............................................................................................................................. 108
Troubleshooting A Storage Controller..................................................................................................................109
Troubleshooting Expansion Cards........................................................................................................................109
Troubleshooting Processors.................................................................................................................................110
5 Using System Diagnostics.....................................................................................................111
Dell Online Diagnostics.........................................................................................................................................111
Dell Embedded System Diagnostics.....................................................................................................................111
When To Use The Embedded System Diagnostics........................................................................................111
Running The Embedded System Diagnostics.................................................................................................111
System Diagnostic Controls........................................................................................................................... 112
6 Jumpers And Connectors......................................................................................................113
System Board Jumper Settings............................................................................................................................113
System Board Connectors....................................................................................................................................114
Disabling A Forgotten Password.......................................................................................................................... 116
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