8Contents
Control Panel Assembly
(Service-Only Procedure) . . . . . . . . . . . . . . . 142
Removing the Control Panel Assembly. . . . . . 142
Installing the Control Panel Assembly . . . . . . 145
SAS Backplane (Service-Only Procedure) . . . . . . 145
Removing the SAS Backplane . . . . . . . . . . 145
Installing the SAS Backplane. . . . . . . . . . . 147
Power Distribution Board
(Service-Only Procedure) . . . . . . . . . . . . . . . 148
Removing the Power Distribution Board . . . . . 148
Installing the Power Distribution Board . . . . . 150
System Board (Service-Only Procedure) . . . . . . . 150
Removing the System Board . . . . . . . . . . . 150
Installing the System Board. . . . . . . . . . . . 153
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
book.book Page 8 Tuesday, June 9, 2009 4:09 PM