4troubleshooting your system – Dell DX6012S User Manual
Page 7

Contents
7
109
. . . . . . . . . . . . . . . . . . . . . .
110
110
. . . . . . . . . . . . . . . . . . . . .
112
112
115
. . . . . . . . . . . . . . . .
115
Removing the Power Distribution Board
115
Replacing the Power Distribution Board
118
. . . . . . . . . . . . . . . . . . . . . .
119
119
121
4
129
Safety First—For You and Your System
129
Troubleshooting System Startup Failure
129
Troubleshooting External Connections
129
Troubleshooting the Video Subsystem
130
130
Troubleshooting a Serial I/O Device
131
. . . . . . . . . . . . . . . . . .
131
132
Troubleshooting a Damaged System
134
Troubleshooting the System Battery
134
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