Removing the system board................................................................................................................................... 142
Installing the system board......................................................................................................................................144
Entering the system Service Tag by using System Setup................................................................................... 147
Restoring the Service Tag by using the Easy Restore feature............................................................................147
System board jumper settings...................................................................................................................................... 150
Disabling forgotten password....................................................................................................................................... 150
System board connectors.............................................................................................................................................. 151
Safety first — for you and your system......................................................................................................................153
Troubleshooting system startup failure........................................................................................................................153
Troubleshooting external connections......................................................................................................................... 153
Troubleshooting the video subsystem......................................................................................................................... 154
Troubleshooting a USB device...................................................................................................................................... 154
Troubleshooting a serial input and output device....................................................................................................... 154
Troubleshooting a NIC................................................................................................................................................... 155
Troubleshooting a wet system...................................................................................................................................... 155
Troubleshooting a damaged system.............................................................................................................................156
Troubleshooting the system battery.............................................................................................................................157
Troubleshooting power supply units............................................................................................................................. 157
Troubleshooting power source problems............................................................................................................... 157
Power supply unit problems.................................................................................................................................... 158
Troubleshooting cooling problems................................................................................................................................ 158
Troubleshooting cooling fans.........................................................................................................................................159
Troubleshooting system memory..................................................................................................................................159
Troubleshooting a drive or SSD.................................................................................................................................... 160
Troubleshooting a storage controller.............................................................................................................................161
Troubleshooting expansion cards.................................................................................................................................. 161
Troubleshooting processors.......................................................................................................................................... 162
6
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