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8 Contents
Removing the Control Panel
Display Module
. . . . . . . . . . . . . . . . . . 140
Installing the Control Panel
Display Module
. . . . . . . . . . . . . . . . . . 141
Removing the Control Panel Board
. . . . . . . . 143
Installing the Control Panel Board
. . . . . . . . 144
System Board Assembly
. . . . . . . . . . . . . . . . 144
Removing the System Board Assembly
. . . . . . 145
Installing the System Board Assembly
. . . . . . 148
4 Troubleshooting Your System . . . . . . . . 151
Safety First—For You and Your System . . . . . . . . 151
Troubleshooting System Startup Failure
. . . . . . . . 151
Troubleshooting External Connections
. . . . . . . . 151
Troubleshooting the Video Subsystem
. . . . . . . . . 152
Troubleshooting a USB Device
. . . . . . . . . . . . 152
Troubleshooting a Serial I/O Device
. . . . . . . . . . 153
Troubleshooting a NIC
. . . . . . . . . . . . . . . . . 153
Troubleshooting a Wet System
. . . . . . . . . . . . . 154
Troubleshooting a Damaged System
. . . . . . . . . . 155
Troubleshooting the System Battery. . . . . . . . . . 156
Troubleshooting Power Supplies
. . . . . . . . . . . 157
Troubleshooting System Cooling Problems
. . . . . . 157
Troubleshooting a Fan
. . . . . . . . . . . . . . 158
Troubleshooting System Memory
. . . . . . . . . . . 159
book.book Page 8 Wednesday, February 17, 2010 6:17 PM