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8 Contents
4 Troubleshooting Your System . . . . . . . . 129
Safety First—For You and Your System . . . . . . . . 129
Troubleshooting System Startup Failure
. . . . . . . . 129
Troubleshooting External Connections
. . . . . . . . 129
Troubleshooting the Video Subsystem
. . . . . . . . . 130
Troubleshooting a USB Device
. . . . . . . . . . . . 130
Troubleshooting a Serial I/O Device
. . . . . . . . . . 131
Troubleshooting a NIC
. . . . . . . . . . . . . . . . . 131
Troubleshooting a Wet System
. . . . . . . . . . . . . 132
Troubleshooting a Damaged System
. . . . . . . . . . 134
Troubleshooting the System Battery
. . . . . . . . . . 134
Troubleshooting Power Supplies
. . . . . . . . . . . 135
Troubleshooting System Cooling Problems
. . . . . . 136
Troubleshooting a Fan
. . . . . . . . . . . . . . . . . 136
Troubleshooting System Memory
. . . . . . . . . . . 137
Troubleshooting a Hard Drive
. . . . . . . . . . . . . 139
Troubleshooting an Internal Hard Drive
. . . . . . . . 140
Troubleshooting a Storage Controller
. . . . . . . . . 141
Troubleshooting Expansion Cards
. . . . . . . . . . . 142
Troubleshooting Processors
. . . . . . . . . . . . . . 144
book.book Page 8 Wednesday, May 12, 2010 9:26 PM