8 Contents
Removing the SAS Backplane . . . . . . . . . . 142
Installing the SAS Backplane
. . . . . . . . . . . 144
Power Distribution Board
. . . . . . . . . . . . . . . 146
Removing the Power Distribution Board
. . . . . 146
Installing the Power Distribution Board
. . . . . 147
System Board
. . . . . . . . . . . . . . . . . . . . . . 148
Removing the System Board
. . . . . . . . . . . 148
Installing the System Board
. . . . . . . . . . . . 151
4 Troubleshooting Your System . . . . . . . . 155
Safety First—For You and Your System . . . . . . . . 155
Troubleshooting System Startup Failure
. . . . . . . . 155
Troubleshooting External Connections
. . . . . . . . 155
Troubleshooting the Video Subsystem
. . . . . . . . . 156
Troubleshooting a USB Device
. . . . . . . . . . . . 156
Troubleshooting a Serial I/O Device
. . . . . . . . . . 157
Troubleshooting a NIC . . . . . . . . . . . . . . . . . 157
Troubleshooting a Wet System
. . . . . . . . . . . . . 158
Troubleshooting a Damaged System
. . . . . . . . . . 159
Troubleshooting the System Battery
. . . . . . . . . . 160
Troubleshooting Power Supplies
. . . . . . . . . . . 160
Troubleshooting System Cooling Problems
. . . . . . 161
Troubleshooting a Fan
. . . . . . . . . . . . . . . . . 162
book.book Page 8 Tuesday, September 15, 2009 10:08 AM